/**
 * @licstart The following is the entire license notice for the
 * JavaScript code in this page
 *
 * Copyright 2024 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * JavaScript code in this page
 */

/******/ // The require scope
/******/ var __webpack_require__ = {};
/******/
/************************************************************************/
/******/ /* webpack/runtime/define property getters */
/******/ (() => {
/******/ 	// define getter functions for harmony exports
/******/ 	__webpack_require__.d = (exports, definition) => {
/******/ 		for (var key in definition) {
/******/ 			if (__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
/******/ 				Object.defineProperty(exports, key, { enumerable: true, get: definition[key] })
        /******/
      }
      /******/
    }
    /******/
  }
  /******/
})();
/******/
/******/ /* webpack/runtime/hasOwnProperty shorthand */
/******/ (() => {
/******/ 	__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
  /******/
})()
/******/
/************************************************************************/
var __webpack_exports__ = {}

// EXPORTS
__webpack_require__.d(__webpack_exports__, {
  PDFViewerApplication: () => (/* reexport */ PDFViewerApplication),
  PDFViewerApplicationConstants: () => (/* binding */ AppConstants),
  PDFViewerApplicationOptions: () => (/* reexport */ AppOptions)
})

// ./web/ui_utils.js
const DEFAULT_SCALE_VALUE = "auto"
const DEFAULT_SCALE = 1.0
const DEFAULT_SCALE_DELTA = 1.1
const MIN_SCALE = 0.1
const MAX_SCALE = 10.0
const UNKNOWN_SCALE = 0
const MAX_AUTO_SCALE = 1.25
const SCROLLBAR_PADDING = 40
const VERTICAL_PADDING = 5
const RenderingStates = {
  INITIAL: 0,
  RUNNING: 1,
  PAUSED: 2,
  FINISHED: 3
}
const PresentationModeState = {
  UNKNOWN: 0,
  NORMAL: 1,
  CHANGING: 2,
  FULLSCREEN: 3
}
const SidebarView = {
  UNKNOWN: -1,
  NONE: 0,
  THUMBS: 1,
  OUTLINE: 2,
  ATTACHMENTS: 3,
  LAYERS: 4
}
const TextLayerMode = {
  DISABLE: 0,
  ENABLE: 1,
  ENABLE_PERMISSIONS: 2
}
const ScrollMode = {
  UNKNOWN: -1,
  VERTICAL: 0,
  HORIZONTAL: 1,
  WRAPPED: 2,
  PAGE: 3
}
const SpreadMode = {
  UNKNOWN: -1,
  NONE: 0,
  ODD: 1,
  EVEN: 2
}
const CursorTool = {
  SELECT: 0,
  HAND: 1,
  ZOOM: 2
}
const AutoPrintRegExp = /\bprint\s*\(/
function scrollIntoView (element, spot, scrollMatches = false) {
  let parent = element.offsetParent
  if (!parent) {
    console.error("offsetParent is not set -- cannot scroll")
    return
  }
  let offsetY = element.offsetTop + element.clientTop
  let offsetX = element.offsetLeft + element.clientLeft
  while (parent.clientHeight === parent.scrollHeight && parent.clientWidth === parent.scrollWidth || scrollMatches && (parent.classList.contains("markedContent") || getComputedStyle(parent).overflow === "hidden")) {
    offsetY += parent.offsetTop
    offsetX += parent.offsetLeft
    parent = parent.offsetParent
    if (!parent) {
      return
    }
  }
  if (spot) {
    if (spot.top !== undefined) {
      offsetY += spot.top
    }
    if (spot.left !== undefined) {
      offsetX += spot.left
      parent.scrollLeft = offsetX
    }
  }
  parent.scrollTop = offsetY
}
function watchScroll (viewAreaElement, callback, abortSignal = undefined) {
  const debounceScroll = function (evt) {
    if (rAF) {
      return
    }
    rAF = window.requestAnimationFrame(function viewAreaElementScrolled () {
      rAF = null
      const currentX = viewAreaElement.scrollLeft
      const lastX = state.lastX
      if (currentX !== lastX) {
        state.right = currentX > lastX
      }
      state.lastX = currentX
      const currentY = viewAreaElement.scrollTop
      const lastY = state.lastY
      if (currentY !== lastY) {
        state.down = currentY > lastY
      }
      state.lastY = currentY
      callback(state)
    })
  }
  const state = {
    right: true,
    down: true,
    lastX: viewAreaElement.scrollLeft,
    lastY: viewAreaElement.scrollTop,
    _eventHandler: debounceScroll
  }
  let rAF = null
  viewAreaElement.addEventListener("scroll", debounceScroll, {
    useCapture: true,
    signal: abortSignal
  })
  abortSignal?.addEventListener("abort", () => window.cancelAnimationFrame(rAF), {
    once: true
  })
  return state
}
function parseQueryString (query) {
  const params = new Map()
  for (const [key, value] of new URLSearchParams(query)) {
    params.set(key.toLowerCase(), value)
  }
  return params
}
const InvisibleCharsRegExp = /[\x00-\x1F]/g
function removeNullCharacters (str, replaceInvisible = false) {
  if (!InvisibleCharsRegExp.test(str)) {
    return str
  }
  if (replaceInvisible) {
    return str.replaceAll(InvisibleCharsRegExp, m => m === "\x00" ? "" : " ")
  }
  return str.replaceAll("\x00", "")
}
function binarySearchFirstItem (items, condition, start = 0) {
  let minIndex = start
  let maxIndex = items.length - 1
  if (maxIndex < 0 || !condition(items[maxIndex])) {
    return items.length
  }
  if (condition(items[minIndex])) {
    return minIndex
  }
  while (minIndex < maxIndex) {
    const currentIndex = minIndex + maxIndex >> 1
    const currentItem = items[currentIndex]
    if (condition(currentItem)) {
      maxIndex = currentIndex
    } else {
      minIndex = currentIndex + 1
    }
  }
  return minIndex
}
function approximateFraction (x) {
  if (Math.floor(x) === x) {
    return [x, 1]
  }
  const xinv = 1 / x
  const limit = 8
  if (xinv > limit) {
    return [1, limit]
  } else if (Math.floor(xinv) === xinv) {
    return [1, xinv]
  }
  const x_ = x > 1 ? xinv : x
  let a = 0,
    b = 1,
    c = 1,
    d = 1
  while (true) {
    const p = a + c,
      q = b + d
    if (q > limit) {
      break
    }
    if (x_ <= p / q) {
      c = p
      d = q
    } else {
      a = p
      b = q
    }
  }
  let result
  if (x_ - a / b < c / d - x_) {
    result = x_ === x ? [a, b] : [b, a]
  } else {
    result = x_ === x ? [c, d] : [d, c]
  }
  return result
}
function floorToDivide (x, div) {
  return x - x % div
}
function getPageSizeInches ({
  view,
  userUnit,
  rotate
}) {
  const [x1, y1, x2, y2] = view
  const changeOrientation = rotate % 180 !== 0
  const width = (x2 - x1) / 72 * userUnit
  const height = (y2 - y1) / 72 * userUnit
  return {
    width: changeOrientation ? height : width,
    height: changeOrientation ? width : height
  }
}
function backtrackBeforeAllVisibleElements (index, views, top) {
  if (index < 2) {
    return index
  }
  let elt = views[index].div
  let pageTop = elt.offsetTop + elt.clientTop
  if (pageTop >= top) {
    elt = views[index - 1].div
    pageTop = elt.offsetTop + elt.clientTop
  }
  for (let i = index - 2; i >= 0; --i) {
    elt = views[i].div
    if (elt.offsetTop + elt.clientTop + elt.clientHeight <= pageTop) {
      break
    }
    index = i
  }
  return index
}
function getVisibleElements ({
  scrollEl,
  views,
  sortByVisibility = false,
  horizontal = false,
  rtl = false
}) {
  const top = scrollEl.scrollTop,
    bottom = top + scrollEl.clientHeight
  const left = scrollEl.scrollLeft,
    right = left + scrollEl.clientWidth
  function isElementBottomAfterViewTop (view) {
    const element = view.div
    const elementBottom = element.offsetTop + element.clientTop + element.clientHeight
    return elementBottom > top
  }
  function isElementNextAfterViewHorizontally (view) {
    const element = view.div
    const elementLeft = element.offsetLeft + element.clientLeft
    const elementRight = elementLeft + element.clientWidth
    return rtl ? elementLeft < right : elementRight > left
  }
  const visible = [],
    ids = new Set(),
    numViews = views.length
  let firstVisibleElementInd = binarySearchFirstItem(views, horizontal ? isElementNextAfterViewHorizontally : isElementBottomAfterViewTop)
  if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) {
    firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top)
  }
  let lastEdge = horizontal ? right : -1
  for (let i = firstVisibleElementInd; i < numViews; i++) {
    const view = views[i],
      element = view.div
    const currentWidth = element.offsetLeft + element.clientLeft
    const currentHeight = element.offsetTop + element.clientTop
    const viewWidth = element.clientWidth,
      viewHeight = element.clientHeight
    const viewRight = currentWidth + viewWidth
    const viewBottom = currentHeight + viewHeight
    if (lastEdge === -1) {
      if (viewBottom >= bottom) {
        lastEdge = viewBottom
      }
    } else if ((horizontal ? currentWidth : currentHeight) > lastEdge) {
      break
    }
    if (viewBottom <= top || currentHeight >= bottom || viewRight <= left || currentWidth >= right) {
      continue
    }
    const hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, viewBottom - bottom)
    const hiddenWidth = Math.max(0, left - currentWidth) + Math.max(0, viewRight - right)
    const fractionHeight = (viewHeight - hiddenHeight) / viewHeight,
      fractionWidth = (viewWidth - hiddenWidth) / viewWidth
    const percent = fractionHeight * fractionWidth * 100 | 0
    visible.push({
      id: view.id,
      x: currentWidth,
      y: currentHeight,
      view,
      percent,
      widthPercent: fractionWidth * 100 | 0
    })
    ids.add(view.id)
  }
  const first = visible[0],
    last = visible.at(-1)
  if (sortByVisibility) {
    visible.sort(function (a, b) {
      const pc = a.percent - b.percent
      if (Math.abs(pc) > 0.001) {
        return -pc
      }
      return a.id - b.id
    })
  }
  return {
    first,
    last,
    views: visible,
    ids
  }
}
function normalizeWheelEventDirection (evt) {
  let delta = Math.hypot(evt.deltaX, evt.deltaY)
  const angle = Math.atan2(evt.deltaY, evt.deltaX)
  if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
    delta = -delta
  }
  return delta
}
function normalizeWheelEventDelta (evt) {
  const deltaMode = evt.deltaMode
  let delta = normalizeWheelEventDirection(evt)
  const MOUSE_PIXELS_PER_LINE = 30
  const MOUSE_LINES_PER_PAGE = 30
  if (deltaMode === WheelEvent.DOM_DELTA_PIXEL) {
    delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE
  } else if (deltaMode === WheelEvent.DOM_DELTA_LINE) {
    delta /= MOUSE_LINES_PER_PAGE
  }
  return delta
}
function isValidRotation (angle) {
  return Number.isInteger(angle) && angle % 90 === 0
}
function isValidScrollMode (mode) {
  return Number.isInteger(mode) && Object.values(ScrollMode).includes(mode) && mode !== ScrollMode.UNKNOWN
}
function isValidSpreadMode (mode) {
  return Number.isInteger(mode) && Object.values(SpreadMode).includes(mode) && mode !== SpreadMode.UNKNOWN
}
function isPortraitOrientation (size) {
  return size.width <= size.height
}
const animationStarted = new Promise(function (resolve) {
  window.requestAnimationFrame(resolve)
})
const docStyle = document.documentElement.style
function clamp (v, min, max) {
  return Math.min(Math.max(v, min), max)
}
class ProgressBar {
  #classList = null;
  #disableAutoFetchTimeout = null;
  #percent = 0;
  #style = null;
  #visible = true;
  constructor(bar) {
    this.#classList = bar.classList
    this.#style = bar.style
  }
  get percent () {
    return this.#percent
  }
  set percent (val) {
    this.#percent = clamp(val, 0, 100)
    if (isNaN(val)) {
      this.#classList.add("indeterminate")
      return
    }
    this.#classList.remove("indeterminate")
    this.#style.setProperty("--progressBar-percent", `${this.#percent}%`)
  }
  setWidth (viewer) {
    if (!viewer) {
      return
    }
    const container = viewer.parentNode
    const scrollbarWidth = container.offsetWidth - viewer.offsetWidth
    if (scrollbarWidth > 0) {
      this.#style.setProperty("--progressBar-end-offset", `${scrollbarWidth}px`)
    }
  }
  setDisableAutoFetch (delay = 5000) {
    if (this.#percent === 100 || isNaN(this.#percent)) {
      return
    }
    if (this.#disableAutoFetchTimeout) {
      clearTimeout(this.#disableAutoFetchTimeout)
    }
    this.show()
    this.#disableAutoFetchTimeout = setTimeout(() => {
      this.#disableAutoFetchTimeout = null
      this.hide()
    }, delay)
  }
  hide () {
    if (!this.#visible) {
      return
    }
    this.#visible = false
    this.#classList.add("hidden")
  }
  show () {
    if (this.#visible) {
      return
    }
    this.#visible = true
    this.#classList.remove("hidden")
  }
}
function getActiveOrFocusedElement () {
  let curRoot = document
  let curActiveOrFocused = curRoot.activeElement || curRoot.querySelector(":focus")
  while (curActiveOrFocused?.shadowRoot) {
    curRoot = curActiveOrFocused.shadowRoot
    curActiveOrFocused = curRoot.activeElement || curRoot.querySelector(":focus")
  }
  return curActiveOrFocused
}
function apiPageLayoutToViewerModes (layout) {
  let scrollMode = ScrollMode.VERTICAL,
    spreadMode = SpreadMode.NONE
  switch (layout) {
    case "SinglePage":
      scrollMode = ScrollMode.PAGE
      break
    case "OneColumn":
      break
    case "TwoPageLeft":
      scrollMode = ScrollMode.PAGE
    case "TwoColumnLeft":
      spreadMode = SpreadMode.ODD
      break
    case "TwoPageRight":
      scrollMode = ScrollMode.PAGE
    case "TwoColumnRight":
      spreadMode = SpreadMode.EVEN
      break
  }
  return {
    scrollMode,
    spreadMode
  }
}
function apiPageModeToSidebarView (mode) {
  switch (mode) {
    case "UseNone":
      return SidebarView.NONE
    case "UseThumbs":
      return SidebarView.THUMBS
    case "UseOutlines":
      return SidebarView.OUTLINE
    case "UseAttachments":
      return SidebarView.ATTACHMENTS
    case "UseOC":
      return SidebarView.LAYERS
  }
  return SidebarView.NONE
}
function toggleCheckedBtn (button, toggle, view = null) {
  button.classList.toggle("toggled", toggle)
  button.setAttribute("aria-checked", toggle)
  view?.classList.toggle("hidden", !toggle)
}
function toggleExpandedBtn (button, toggle, view = null) {
  button.classList.toggle("toggled", toggle)
  button.setAttribute("aria-expanded", toggle)
  view?.classList.toggle("hidden", !toggle)
}
const calcRound = function () {
  const e = document.createElement("div")
  e.style.width = "round(down, calc(1.6666666666666665 * 792px), 1px)"
  return e.style.width === "calc(1320px)" ? Math.fround : x => x
}()

// ./web/app_options.js
{
  var compatParams = new Map()
  const userAgent = navigator.userAgent || ""
  const platform = navigator.platform || ""
  const maxTouchPoints = navigator.maxTouchPoints || 1
  const isAndroid = /Android/.test(userAgent)
  const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) || platform === "MacIntel" && maxTouchPoints > 1;
  (function () {
    if (isIOS || isAndroid) {
      compatParams.set("maxCanvasPixels", 5242880)
    }
  })();
  (function () {
    if (isAndroid) {
      compatParams.set("useSystemFonts", false)
    }
  })()
}
const OptionKind = {
  BROWSER: 0x01,
  VIEWER: 0x02,
  API: 0x04,
  WORKER: 0x08,
  EVENT_DISPATCH: 0x10,
  PREFERENCE: 0x80
}
const Type = {
  BOOLEAN: 0x01,
  NUMBER: 0x02,
  OBJECT: 0x04,
  STRING: 0x08,
  UNDEFINED: 0x10
}
const defaultOptions = {
  allowedGlobalEvents: {
    value: null,
    kind: OptionKind.BROWSER
  },
  canvasMaxAreaInBytes: {
    value: -1,
    kind: OptionKind.BROWSER + OptionKind.API
  },
  isInAutomation: {
    value: false,
    kind: OptionKind.BROWSER
  },
  localeProperties: {
    value: {
      lang: navigator.language || "en-US"
    },
    kind: OptionKind.BROWSER
  },
  nimbusDataStr: {
    value: "",
    kind: OptionKind.BROWSER
  },
  supportsCaretBrowsingMode: {
    value: false,
    kind: OptionKind.BROWSER
  },
  supportsDocumentFonts: {
    value: true,
    kind: OptionKind.BROWSER
  },
  supportsIntegratedFind: {
    value: false,
    kind: OptionKind.BROWSER
  },
  supportsMouseWheelZoomCtrlKey: {
    value: true,
    kind: OptionKind.BROWSER
  },
  supportsMouseWheelZoomMetaKey: {
    value: true,
    kind: OptionKind.BROWSER
  },
  supportsPinchToZoom: {
    value: true,
    kind: OptionKind.BROWSER
  },
  toolbarDensity: {
    value: 0,
    kind: OptionKind.BROWSER + OptionKind.EVENT_DISPATCH
  },
  altTextLearnMoreUrl: {
    value: "",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  annotationEditorMode: {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  annotationMode: {
    value: 2,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  cursorToolOnLoad: {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  debuggerSrc: {
    value: "./debugger.mjs",
    kind: OptionKind.VIEWER
  },
  defaultZoomDelay: {
    value: 400,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  defaultZoomValue: {
    value: "",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  disableHistory: {
    value: false,
    kind: OptionKind.VIEWER
  },
  disablePageLabels: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableAltText: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableAltTextModelDownload: {
    value: true,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE + OptionKind.EVENT_DISPATCH
  },
  enableGuessAltText: {
    value: true,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE + OptionKind.EVENT_DISPATCH
  },
  enableHighlightFloatingButton: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableNewAltTextWhenAddingImage: {
    value: true,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enablePermissions: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enablePrintAutoRotate: {
    value: true,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableScripting: {
    value: true,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableUpdatedAddImage: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  externalLinkRel: {
    value: "noopener noreferrer nofollow",
    kind: OptionKind.VIEWER
  },
  externalLinkTarget: {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  highlightEditorColors: {
    value: "yellow=#FFFF98,green=#53FFBC,blue=#80EBFF,pink=#FFCBE6,red=#FF4F5F",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  historyUpdateUrl: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  ignoreDestinationZoom: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  imageResourcesPath: {
    value: "./images/",
    kind: OptionKind.VIEWER
  },
  maxCanvasPixels: {
    value: 2 ** 25,
    kind: OptionKind.VIEWER
  },
  forcePageColors: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  pageColorsBackground: {
    value: "Canvas",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  pageColorsForeground: {
    value: "CanvasText",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  pdfBugEnabled: {
    value: false,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  printResolution: {
    value: 150,
    kind: OptionKind.VIEWER
  },
  sidebarViewOnLoad: {
    value: -1,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  scrollModeOnLoad: {
    value: -1,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  spreadModeOnLoad: {
    value: -1,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  textLayerMode: {
    value: 1,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  viewOnLoad: {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  cMapPacked: {
    value: true,
    kind: OptionKind.API
  },
  cMapUrl: {
    value: "../web/cmaps/",
    kind: OptionKind.API
  },
  disableAutoFetch: {
    value: false,
    kind: OptionKind.API + OptionKind.PREFERENCE
  },
  disableFontFace: {
    value: false,
    kind: OptionKind.API + OptionKind.PREFERENCE
  },
  disableRange: {
    value: false,
    kind: OptionKind.API + OptionKind.PREFERENCE
  },
  disableStream: {
    value: false,
    kind: OptionKind.API + OptionKind.PREFERENCE
  },
  docBaseUrl: {
    value: "",
    kind: OptionKind.API
  },
  enableHWA: {
    value: true,
    kind: OptionKind.API + OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  enableXfa: {
    value: true,
    kind: OptionKind.API + OptionKind.PREFERENCE
  },
  fontExtraProperties: {
    value: false,
    kind: OptionKind.API
  },
  isEvalSupported: {
    value: true,
    kind: OptionKind.API
  },
  isOffscreenCanvasSupported: {
    value: true,
    kind: OptionKind.API
  },
  maxImageSize: {
    value: -1,
    kind: OptionKind.API
  },
  pdfBug: {
    value: false,
    kind: OptionKind.API
  },
  standardFontDataUrl: {
    value: "../web/standard_fonts/",
    kind: OptionKind.API
  },
  useSystemFonts: {
    value: undefined,
    kind: OptionKind.API,
    type: Type.BOOLEAN + Type.UNDEFINED
  },
  verbosity: {
    value: 1,
    kind: OptionKind.API
  },
  workerPort: {
    value: null,
    kind: OptionKind.WORKER
  },
  workerSrc: {
    value: "../build/pdf.worker.mjs",
    kind: OptionKind.WORKER
  }
}
{
  defaultOptions.defaultUrl = {
    value: "compressed.tracemonkey-pldi-09.pdf",
    kind: OptionKind.VIEWER
  }
  defaultOptions.sandboxBundleSrc = {
    value: "../build/pdf.sandbox.mjs",
    kind: OptionKind.VIEWER
  }
  defaultOptions.viewerCssTheme = {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  }
  defaultOptions.enableFakeMLManager = {
    value: true,
    kind: OptionKind.VIEWER
  }
}
{
  defaultOptions.disablePreferences = {
    value: false,
    kind: OptionKind.VIEWER
  }
}
class AppOptions {
  static eventBus
  static #opts = new Map();
  static {
    for (const name in defaultOptions) {
      this.#opts.set(name, defaultOptions[name].value)
    }
    for (const [name, value] of compatParams) {
      this.#opts.set(name, value)
    }
    this._hasInvokedSet = false
    this._checkDisablePreferences = () => {
      if (this.get("disablePreferences")) {
        return true
      }
      if (this._hasInvokedSet) {
        console.warn("The Preferences may override manually set AppOptions; " + 'please use the "disablePreferences"-option to prevent that.')
      }
      return false
    }
  }
  static get (name) {
    return this.#opts.get(name)
  }
  static getAll (kind = null, defaultOnly = false) {
    const options = Object.create(null)
    for (const name in defaultOptions) {
      const defaultOpt = defaultOptions[name]
      if (kind && !(kind & defaultOpt.kind)) {
        continue
      }
      options[name] = !defaultOnly ? this.#opts.get(name) : defaultOpt.value
    }
    return options
  }
  static set (name, value) {
    this.setAll({
      [name]: value
    })
  }
  static setAll (options, prefs = false) {
    this._hasInvokedSet ||= true
    let events
    for (const name in options) {
      const defaultOpt = defaultOptions[name],
        userOpt = options[name]
      if (!defaultOpt || !(typeof userOpt === typeof defaultOpt.value || Type[(typeof userOpt).toUpperCase()] & defaultOpt.type)) {
        continue
      }
      const {
        kind
      } = defaultOpt
      if (prefs && !(kind & OptionKind.BROWSER || kind & OptionKind.PREFERENCE)) {
        continue
      }
      if (this.eventBus && kind & OptionKind.EVENT_DISPATCH) {
        (events ||= new Map()).set(name, userOpt)
      }
      this.#opts.set(name, userOpt)
    }
    if (events) {
      for (const [name, value] of events) {
        this.eventBus.dispatch(name.toLowerCase(), {
          source: this,
          value
        })
      }
    }
  }
}

;// ./web/pdf_link_service.js

const DEFAULT_LINK_REL = "noopener noreferrer nofollow"
const LinkTarget = {
  NONE: 0,
  SELF: 1,
  BLANK: 2,
  PARENT: 3,
  TOP: 4
}
class PDFLinkService {
  externalLinkEnabled = true;
  constructor({
    eventBus,
    externalLinkTarget = null,
    externalLinkRel = null,
    ignoreDestinationZoom = false
  } = {}) {
    this.eventBus = eventBus
    this.externalLinkTarget = externalLinkTarget
    this.externalLinkRel = externalLinkRel
    this._ignoreDestinationZoom = ignoreDestinationZoom
    this.baseUrl = null
    this.pdfDocument = null
    this.pdfViewer = null
    this.pdfHistory = null
  }
  setDocument (pdfDocument, baseUrl = null) {
    this.baseUrl = baseUrl
    this.pdfDocument = pdfDocument
  }
  setViewer (pdfViewer) {
    this.pdfViewer = pdfViewer
  }
  setHistory (pdfHistory) {
    this.pdfHistory = pdfHistory
  }
  get pagesCount () {
    return this.pdfDocument ? this.pdfDocument.numPages : 0
  }
  get page () {
    return this.pdfDocument ? this.pdfViewer.currentPageNumber : 1
  }
  set page (value) {
    if (this.pdfDocument) {
      this.pdfViewer.currentPageNumber = value
    }
  }
  get rotation () {
    return this.pdfDocument ? this.pdfViewer.pagesRotation : 0
  }
  set rotation (value) {
    if (this.pdfDocument) {
      this.pdfViewer.pagesRotation = value
    }
  }
  get isInPresentationMode () {
    return this.pdfDocument ? this.pdfViewer.isInPresentationMode : false
  }
  async goToDestination (dest) {
    if (!this.pdfDocument) {
      return
    }
    let namedDest, explicitDest, pageNumber
    if (typeof dest === "string") {
      namedDest = dest
      explicitDest = await this.pdfDocument.getDestination(dest)
    } else {
      namedDest = null
      explicitDest = await dest
    }
    if (!Array.isArray(explicitDest)) {
      console.error(`goToDestination: "${explicitDest}" is not a valid destination array, for dest="${dest}".`)
      return
    }
    const [destRef] = explicitDest
    if (destRef && typeof destRef === "object") {
      pageNumber = this.pdfDocument.cachedPageNumber(destRef)
      if (!pageNumber) {
        try {
          pageNumber = (await this.pdfDocument.getPageIndex(destRef)) + 1
        } catch {
          console.error(`goToDestination: "${destRef}" is not a valid page reference, for dest="${dest}".`)
          return
        }
      }
    } else if (Number.isInteger(destRef)) {
      pageNumber = destRef + 1
    }
    if (!pageNumber || pageNumber < 1 || pageNumber > this.pagesCount) {
      console.error(`goToDestination: "${pageNumber}" is not a valid page number, for dest="${dest}".`)
      return
    }
    if (this.pdfHistory) {
      this.pdfHistory.pushCurrentPosition()
      this.pdfHistory.push({
        namedDest,
        explicitDest,
        pageNumber
      })
    }
    this.pdfViewer.scrollPageIntoView({
      pageNumber,
      destArray: explicitDest,
      ignoreDestinationZoom: this._ignoreDestinationZoom
    })
  }
  goToPage (val) {
    if (!this.pdfDocument) {
      return
    }
    const pageNumber = typeof val === "string" && this.pdfViewer.pageLabelToPageNumber(val) || val | 0
    if (!(Number.isInteger(pageNumber) && pageNumber > 0 && pageNumber <= this.pagesCount)) {
      console.error(`PDFLinkService.goToPage: "${val}" is not a valid page.`)
      return
    }
    if (this.pdfHistory) {
      this.pdfHistory.pushCurrentPosition()
      this.pdfHistory.pushPage(pageNumber)
    }
    this.pdfViewer.scrollPageIntoView({
      pageNumber
    })
  }
  addLinkAttributes (link, url, newWindow = false) {
    if (!url || typeof url !== "string") {
      throw new Error('A valid "url" parameter must provided.')
    }
    const target = newWindow ? LinkTarget.BLANK : this.externalLinkTarget,
      rel = this.externalLinkRel
    if (this.externalLinkEnabled) {
      link.href = link.title = url
    } else {
      link.href = ""
      link.title = `Disabled: ${url}`
      link.onclick = () => false
    }
    let targetStr = ""
    switch (target) {
      case LinkTarget.NONE:
        break
      case LinkTarget.SELF:
        targetStr = "_self"
        break
      case LinkTarget.BLANK:
        targetStr = "_blank"
        break
      case LinkTarget.PARENT:
        targetStr = "_parent"
        break
      case LinkTarget.TOP:
        targetStr = "_top"
        break
    }
    link.target = targetStr
    link.rel = typeof rel === "string" ? rel : DEFAULT_LINK_REL
  }
  getDestinationHash (dest) {
    if (typeof dest === "string") {
      if (dest.length > 0) {
        return this.getAnchorUrl("#" + escape(dest))
      }
    } else if (Array.isArray(dest)) {
      const str = JSON.stringify(dest)
      if (str.length > 0) {
        return this.getAnchorUrl("#" + escape(str))
      }
    }
    return this.getAnchorUrl("")
  }
  getAnchorUrl (anchor) {
    return this.baseUrl ? this.baseUrl + anchor : anchor
  }
  setHash (hash) {
    if (!this.pdfDocument) {
      return
    }
    let pageNumber, dest
    if (hash.includes("=")) {
      const params = parseQueryString(hash)
      if (params.has("search")) {
        const query = params.get("search").replaceAll('"', ""),
          phrase = params.get("phrase") === "true"
        this.eventBus.dispatch("findfromurlhash", {
          source: this,
          query: phrase ? query : query.match(/\S+/g)
        })
      }
      if (params.has("page")) {
        pageNumber = params.get("page") | 0 || 1
      }
      if (params.has("zoom")) {
        const zoomArgs = params.get("zoom").split(",")
        const zoomArg = zoomArgs[0]
        const zoomArgNumber = parseFloat(zoomArg)
        if (!zoomArg.includes("Fit")) {
          dest = [null, {
            name: "XYZ"
          }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null, zoomArgs.length > 2 ? zoomArgs[2] | 0 : null, zoomArgNumber ? zoomArgNumber / 100 : zoomArg]
        } else if (zoomArg === "Fit" || zoomArg === "FitB") {
          dest = [null, {
            name: zoomArg
          }]
        } else if (zoomArg === "FitH" || zoomArg === "FitBH" || zoomArg === "FitV" || zoomArg === "FitBV") {
          dest = [null, {
            name: zoomArg
          }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null]
        } else if (zoomArg === "FitR") {
          if (zoomArgs.length !== 5) {
            console.error('PDFLinkService.setHash: Not enough parameters for "FitR".')
          } else {
            dest = [null, {
              name: zoomArg
            }, zoomArgs[1] | 0, zoomArgs[2] | 0, zoomArgs[3] | 0, zoomArgs[4] | 0]
          }
        } else {
          console.error(`PDFLinkService.setHash: "${zoomArg}" is not a valid zoom value.`)
        }
      }
      if (dest) {
        this.pdfViewer.scrollPageIntoView({
          pageNumber: pageNumber || this.page,
          destArray: dest,
          allowNegativeOffset: true
        })
      } else if (pageNumber) {
        this.page = pageNumber
      }
      if (params.has("pagemode")) {
        this.eventBus.dispatch("pagemode", {
          source: this,
          mode: params.get("pagemode")
        })
      }
      if (params.has("nameddest")) {
        this.goToDestination(params.get("nameddest"))
      }
      return
    }
    dest = unescape(hash)
    try {
      dest = JSON.parse(dest)
      if (!Array.isArray(dest)) {
        dest = dest.toString()
      }
    } catch { }
    if (typeof dest === "string" || PDFLinkService.#isValidExplicitDest(dest)) {
      this.goToDestination(dest)
      return
    }
    console.error(`PDFLinkService.setHash: "${unescape(hash)}" is not a valid destination.`)
  }
  executeNamedAction (action) {
    if (!this.pdfDocument) {
      return
    }
    switch (action) {
      case "GoBack":
        this.pdfHistory?.back()
        break
      case "GoForward":
        this.pdfHistory?.forward()
        break
      case "NextPage":
        this.pdfViewer.nextPage()
        break
      case "PrevPage":
        this.pdfViewer.previousPage()
        break
      case "LastPage":
        this.page = this.pagesCount
        break
      case "FirstPage":
        this.page = 1
        break
      default:
        break
    }
    this.eventBus.dispatch("namedaction", {
      source: this,
      action
    })
  }
  async executeSetOCGState (action) {
    if (!this.pdfDocument) {
      return
    }
    const pdfDocument = this.pdfDocument,
      optionalContentConfig = await this.pdfViewer.optionalContentConfigPromise
    if (pdfDocument !== this.pdfDocument) {
      return
    }
    optionalContentConfig.setOCGState(action)
    this.pdfViewer.optionalContentConfigPromise = Promise.resolve(optionalContentConfig)
  }
  static #isValidExplicitDest (dest) {
    if (!Array.isArray(dest) || dest.length < 2) {
      return false
    }
    const [page, zoom, ...args] = dest
    if (!(typeof page === "object" && Number.isInteger(page?.num) && Number.isInteger(page?.gen)) && !Number.isInteger(page)) {
      return false
    }
    if (!(typeof zoom === "object" && typeof zoom?.name === "string")) {
      return false
    }
    const argsLen = args.length
    let allowNull = true
    switch (zoom.name) {
      case "XYZ":
        if (argsLen < 2 || argsLen > 3) {
          return false
        }
        break
      case "Fit":
      case "FitB":
        return argsLen === 0
      case "FitH":
      case "FitBH":
      case "FitV":
      case "FitBV":
        if (argsLen > 1) {
          return false
        }
        break
      case "FitR":
        if (argsLen !== 4) {
          return false
        }
        allowNull = false
        break
      default:
        return false
    }
    for (const arg of args) {
      if (!(typeof arg === "number" || allowNull && arg === null)) {
        return false
      }
    }
    return true
  }
}
class SimpleLinkService extends PDFLinkService {
  setDocument (pdfDocument, baseUrl = null) { }
}

;// ./web/pdfjs.js
const {
  AbortException,
  AnnotationEditorLayer,
  AnnotationEditorParamsType,
  AnnotationEditorType,
  AnnotationEditorUIManager,
  AnnotationLayer,
  AnnotationMode,
  build,
  ColorPicker,
  createValidAbsoluteUrl,
  DOMSVGFactory,
  DrawLayer,
  FeatureTest,
  fetchData,
  getDocument,
  getFilenameFromUrl,
  getPdfFilenameFromUrl: pdfjs_getPdfFilenameFromUrl,
  getXfaPageViewport,
  GlobalWorkerOptions,
  ImageKind,
  InvalidPDFException,
  isDataScheme,
  isPdfFile,
  MissingPDFException,
  noContextMenu,
  normalizeUnicode,
  OPS,
  OutputScale,
  PasswordResponses,
  PDFDataRangeTransport,
  PDFDateString,
  PDFWorker,
  PermissionFlag,
  PixelsPerInch,
  RenderingCancelledException,
  setLayerDimensions,
  shadow,
  stopEvent,
  TextLayer,
  TouchManager,
  UnexpectedResponseException,
  Util,
  VerbosityLevel,
  version,
  XfaLayer
} = globalThis.pdfjsLib

// ./web/event_utils.js
const WaitOnType = {
  EVENT: "event",
  TIMEOUT: "timeout"
}
async function waitOnEventOrTimeout ({
  target,
  name,
  delay = 0
}) {
  if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
    throw new Error("waitOnEventOrTimeout - invalid parameters.")
  }
  const {
    promise,
    resolve
  } = Promise.withResolvers()
  const ac = new AbortController()
  function handler (type) {
    ac.abort()
    clearTimeout(timeout)
    resolve(type)
  }
  const evtMethod = target instanceof EventBus ? "_on" : "addEventListener"
  target[evtMethod](name, handler.bind(null, WaitOnType.EVENT), {
    signal: ac.signal
  })
  const timeout = setTimeout(handler.bind(null, WaitOnType.TIMEOUT), delay)
  return promise
}
class EventBus {
  #listeners = Object.create(null);
  on (eventName, listener, options = null) {
    this._on(eventName, listener, {
      external: true,
      once: options?.once,
      signal: options?.signal
    })
  }
  off (eventName, listener, options = null) {
    this._off(eventName, listener)
  }
  dispatch (eventName, data) {
    const eventListeners = this.#listeners[eventName]
    if (!eventListeners || eventListeners.length === 0) {
      return
    }
    let externalListeners
    for (const {
      listener,
      external,
      once
    } of eventListeners.slice(0)) {
      if (once) {
        this._off(eventName, listener)
      }
      if (external) {
        (externalListeners ||= []).push(listener)
        continue
      }
      listener(data)
    }
    if (externalListeners) {
      for (const listener of externalListeners) {
        listener(data)
      }
      externalListeners = null
    }
  }
  _on (eventName, listener, options = null) {
    let rmAbort = null
    if (options?.signal instanceof AbortSignal) {
      const {
        signal
      } = options
      if (signal.aborted) {
        console.error("Cannot use an `aborted` signal.")
        return
      }
      const onAbort = () => this._off(eventName, listener)
      rmAbort = () => signal.removeEventListener("abort", onAbort)
      signal.addEventListener("abort", onAbort)
    }
    const eventListeners = this.#listeners[eventName] ||= []
    eventListeners.push({
      listener,
      external: options?.external === true,
      once: options?.once === true,
      rmAbort
    })
  }
  _off (eventName, listener, options = null) {
    const eventListeners = this.#listeners[eventName]
    if (!eventListeners) {
      return
    }
    for (let i = 0, ii = eventListeners.length; i < ii; i++) {
      const evt = eventListeners[i]
      if (evt.listener === listener) {
        evt.rmAbort?.()
        eventListeners.splice(i, 1)
        return
      }
    }
  }
}
class FirefoxEventBus extends EventBus {
  #externalServices
  #globalEventNames
  #isInAutomation
  constructor(globalEventNames, externalServices, isInAutomation) {
    super()
    this.#globalEventNames = globalEventNames
    this.#externalServices = externalServices
    this.#isInAutomation = isInAutomation
  }
  dispatch (eventName, data) {
    throw new Error("Not implemented: FirefoxEventBus.dispatch")
  }
}

;// ./web/external_services.js
class BaseExternalServices {
  updateFindControlState (data) { }
  updateFindMatchesCount (data) { }
  initPassiveLoading () { }
  reportTelemetry (data) { }
  async createL10n () {
    throw new Error("Not implemented: createL10n")
  }
  createScripting () {
    throw new Error("Not implemented: createScripting")
  }
  updateEditorStates (data) {
    throw new Error("Not implemented: updateEditorStates")
  }
  dispatchGlobalEvent (_event) { }
}

;// ./web/preferences.js

class BasePreferences {
  #defaults = Object.freeze({
    altTextLearnMoreUrl: "",
    annotationEditorMode: 0,
    annotationMode: 2,
    cursorToolOnLoad: 0,
    defaultZoomDelay: 400,
    defaultZoomValue: "",
    disablePageLabels: false,
    enableAltText: false,
    enableAltTextModelDownload: true,
    enableGuessAltText: true,
    enableHighlightFloatingButton: false,
    enableNewAltTextWhenAddingImage: true,
    enablePermissions: false,
    enablePrintAutoRotate: true,
    enableScripting: true,
    enableUpdatedAddImage: false,
    externalLinkTarget: 0,
    highlightEditorColors: "yellow=#FFFF98,green=#53FFBC,blue=#80EBFF,pink=#FFCBE6,red=#FF4F5F",
    historyUpdateUrl: false,
    ignoreDestinationZoom: false,
    forcePageColors: false,
    pageColorsBackground: "Canvas",
    pageColorsForeground: "CanvasText",
    pdfBugEnabled: false,
    sidebarViewOnLoad: -1,
    scrollModeOnLoad: -1,
    spreadModeOnLoad: -1,
    textLayerMode: 1,
    viewOnLoad: 0,
    disableAutoFetch: false,
    disableFontFace: false,
    disableRange: false,
    disableStream: false,
    enableHWA: true,
    enableXfa: true,
    viewerCssTheme: 0
  });
  #initializedPromise = null;
  constructor() {
    this.#initializedPromise = this._readFromStorage(this.#defaults).then(({
      browserPrefs,
      prefs
    }) => {
      if (AppOptions._checkDisablePreferences()) {
        return
      }
      AppOptions.setAll({
        ...browserPrefs,
        ...prefs
      }, true)
    })
  }
  async _writeToStorage (prefObj) {
    throw new Error("Not implemented: _writeToStorage")
  }
  async _readFromStorage (prefObj) {
    throw new Error("Not implemented: _readFromStorage")
  }
  async reset () {
    await this.#initializedPromise
    AppOptions.setAll(this.#defaults, true)
    await this._writeToStorage(this.#defaults)
  }
  async set (name, value) {
    await this.#initializedPromise
    AppOptions.setAll({
      [name]: value
    }, true)
    await this._writeToStorage(AppOptions.getAll(OptionKind.PREFERENCE))
  }
  async get (name) {
    await this.#initializedPromise
    return AppOptions.get(name)
  }
  get initializedPromise () {
    return this.#initializedPromise
  }
}

;// ./node_modules/@fluent/bundle/esm/types.js
class FluentType {
  constructor(value) {
    this.value = value
  }
  valueOf () {
    return this.value
  }
}
class FluentNone extends FluentType {
  constructor(value = "???") {
    super(value)
  }
  toString (scope) {
    return `{${this.value}}`
  }
}
class FluentNumber extends FluentType {
  constructor(value, opts = {}) {
    super(value)
    this.opts = opts
  }
  toString (scope) {
    try {
      const nf = scope.memoizeIntlObject(Intl.NumberFormat, this.opts)
      return nf.format(this.value)
    } catch (err) {
      scope.reportError(err)
      return this.value.toString(10)
    }
  }
}
class FluentDateTime extends FluentType {
  constructor(value, opts = {}) {
    super(value)
    this.opts = opts
  }
  toString (scope) {
    try {
      const dtf = scope.memoizeIntlObject(Intl.DateTimeFormat, this.opts)
      return dtf.format(this.value)
    } catch (err) {
      scope.reportError(err)
      return new Date(this.value).toISOString()
    }
  }
}
;// ./node_modules/@fluent/bundle/esm/resolver.js

const MAX_PLACEABLES = 100
const FSI = "\u2068"
const PDI = "\u2069"
function match (scope, selector, key) {
  if (key === selector) {
    return true
  }
  if (key instanceof FluentNumber && selector instanceof FluentNumber && key.value === selector.value) {
    return true
  }
  if (selector instanceof FluentNumber && typeof key === "string") {
    let category = scope.memoizeIntlObject(Intl.PluralRules, selector.opts).select(selector.value)
    if (key === category) {
      return true
    }
  }
  return false
}
function getDefault (scope, variants, star) {
  if (variants[star]) {
    return resolvePattern(scope, variants[star].value)
  }
  scope.reportError(new RangeError("No default"))
  return new FluentNone()
}
function getArguments (scope, args) {
  const positional = []
  const named = Object.create(null)
  for (const arg of args) {
    if (arg.type === "narg") {
      named[arg.name] = resolveExpression(scope, arg.value)
    } else {
      positional.push(resolveExpression(scope, arg))
    }
  }
  return {
    positional,
    named
  }
}
function resolveExpression (scope, expr) {
  switch (expr.type) {
    case "str":
      return expr.value
    case "num":
      return new FluentNumber(expr.value, {
        minimumFractionDigits: expr.precision
      })
    case "var":
      return resolveVariableReference(scope, expr)
    case "mesg":
      return resolveMessageReference(scope, expr)
    case "term":
      return resolveTermReference(scope, expr)
    case "func":
      return resolveFunctionReference(scope, expr)
    case "select":
      return resolveSelectExpression(scope, expr)
    default:
      return new FluentNone()
  }
}
function resolveVariableReference (scope, {
  name
}) {
  let arg
  if (scope.params) {
    if (Object.prototype.hasOwnProperty.call(scope.params, name)) {
      arg = scope.params[name]
    } else {
      return new FluentNone(`$${name}`)
    }
  } else if (scope.args && Object.prototype.hasOwnProperty.call(scope.args, name)) {
    arg = scope.args[name]
  } else {
    scope.reportError(new ReferenceError(`Unknown variable: $${name}`))
    return new FluentNone(`$${name}`)
  }
  if (arg instanceof FluentType) {
    return arg
  }
  switch (typeof arg) {
    case "string":
      return arg
    case "number":
      return new FluentNumber(arg)
    case "object":
      if (arg instanceof Date) {
        return new FluentDateTime(arg.getTime())
      }
    default:
      scope.reportError(new TypeError(`Variable type not supported: $${name}, ${typeof arg}`))
      return new FluentNone(`$${name}`)
  }
}
function resolveMessageReference (scope, {
  name,
  attr
}) {
  const message = scope.bundle._messages.get(name)
  if (!message) {
    scope.reportError(new ReferenceError(`Unknown message: ${name}`))
    return new FluentNone(name)
  }
  if (attr) {
    const attribute = message.attributes[attr]
    if (attribute) {
      return resolvePattern(scope, attribute)
    }
    scope.reportError(new ReferenceError(`Unknown attribute: ${attr}`))
    return new FluentNone(`${name}.${attr}`)
  }
  if (message.value) {
    return resolvePattern(scope, message.value)
  }
  scope.reportError(new ReferenceError(`No value: ${name}`))
  return new FluentNone(name)
}
function resolveTermReference (scope, {
  name,
  attr,
  args
}) {
  const id = `-${name}`
  const term = scope.bundle._terms.get(id)
  if (!term) {
    scope.reportError(new ReferenceError(`Unknown term: ${id}`))
    return new FluentNone(id)
  }
  if (attr) {
    const attribute = term.attributes[attr]
    if (attribute) {
      scope.params = getArguments(scope, args).named
      const resolved = resolvePattern(scope, attribute)
      scope.params = null
      return resolved
    }
    scope.reportError(new ReferenceError(`Unknown attribute: ${attr}`))
    return new FluentNone(`${id}.${attr}`)
  }
  scope.params = getArguments(scope, args).named
  const resolved = resolvePattern(scope, term.value)
  scope.params = null
  return resolved
}
function resolveFunctionReference (scope, {
  name,
  args
}) {
  let func = scope.bundle._functions[name]
  if (!func) {
    scope.reportError(new ReferenceError(`Unknown function: ${name}()`))
    return new FluentNone(`${name}()`)
  }
  if (typeof func !== "function") {
    scope.reportError(new TypeError(`Function ${name}() is not callable`))
    return new FluentNone(`${name}()`)
  }
  try {
    let resolved = getArguments(scope, args)
    return func(resolved.positional, resolved.named)
  } catch (err) {
    scope.reportError(err)
    return new FluentNone(`${name}()`)
  }
}
function resolveSelectExpression (scope, {
  selector,
  variants,
  star
}) {
  let sel = resolveExpression(scope, selector)
  if (sel instanceof FluentNone) {
    return getDefault(scope, variants, star)
  }
  for (const variant of variants) {
    const key = resolveExpression(scope, variant.key)
    if (match(scope, sel, key)) {
      return resolvePattern(scope, variant.value)
    }
  }
  return getDefault(scope, variants, star)
}
function resolveComplexPattern (scope, ptn) {
  if (scope.dirty.has(ptn)) {
    scope.reportError(new RangeError("Cyclic reference"))
    return new FluentNone()
  }
  scope.dirty.add(ptn)
  const result = []
  const useIsolating = scope.bundle._useIsolating && ptn.length > 1
  for (const elem of ptn) {
    if (typeof elem === "string") {
      result.push(scope.bundle._transform(elem))
      continue
    }
    scope.placeables++
    if (scope.placeables > MAX_PLACEABLES) {
      scope.dirty.delete(ptn)
      throw new RangeError(`Too many placeables expanded: ${scope.placeables}, ` + `max allowed is ${MAX_PLACEABLES}`)
    }
    if (useIsolating) {
      result.push(FSI)
    }
    result.push(resolveExpression(scope, elem).toString(scope))
    if (useIsolating) {
      result.push(PDI)
    }
  }
  scope.dirty.delete(ptn)
  return result.join("")
}
function resolvePattern (scope, value) {
  if (typeof value === "string") {
    return scope.bundle._transform(value)
  }
  return resolveComplexPattern(scope, value)
}
;// ./node_modules/@fluent/bundle/esm/scope.js
class Scope {
  constructor(bundle, errors, args) {
    this.dirty = new WeakSet()
    this.params = null
    this.placeables = 0
    this.bundle = bundle
    this.errors = errors
    this.args = args
  }
  reportError (error) {
    if (!this.errors || !(error instanceof Error)) {
      throw error
    }
    this.errors.push(error)
  }
  memoizeIntlObject (ctor, opts) {
    let cache = this.bundle._intls.get(ctor)
    if (!cache) {
      cache = {}
      this.bundle._intls.set(ctor, cache)
    }
    let id = JSON.stringify(opts)
    if (!cache[id]) {
      cache[id] = new ctor(this.bundle.locales, opts)
    }
    return cache[id]
  }
}
;// ./node_modules/@fluent/bundle/esm/builtins.js

function values (opts, allowed) {
  const unwrapped = Object.create(null)
  for (const [name, opt] of Object.entries(opts)) {
    if (allowed.includes(name)) {
      unwrapped[name] = opt.valueOf()
    }
  }
  return unwrapped
}
const NUMBER_ALLOWED = ["unitDisplay", "currencyDisplay", "useGrouping", "minimumIntegerDigits", "minimumFractionDigits", "maximumFractionDigits", "minimumSignificantDigits", "maximumSignificantDigits"]
function NUMBER (args, opts) {
  let arg = args[0]
  if (arg instanceof FluentNone) {
    return new FluentNone(`NUMBER(${arg.valueOf()})`)
  }
  if (arg instanceof FluentNumber) {
    return new FluentNumber(arg.valueOf(), {
      ...arg.opts,
      ...values(opts, NUMBER_ALLOWED)
    })
  }
  if (arg instanceof FluentDateTime) {
    return new FluentNumber(arg.valueOf(), {
      ...values(opts, NUMBER_ALLOWED)
    })
  }
  throw new TypeError("Invalid argument to NUMBER")
}
const DATETIME_ALLOWED = ["dateStyle", "timeStyle", "fractionalSecondDigits", "dayPeriod", "hour12", "weekday", "era", "year", "month", "day", "hour", "minute", "second", "timeZoneName"]
function DATETIME (args, opts) {
  let arg = args[0]
  if (arg instanceof FluentNone) {
    return new FluentNone(`DATETIME(${arg.valueOf()})`)
  }
  if (arg instanceof FluentDateTime) {
    return new FluentDateTime(arg.valueOf(), {
      ...arg.opts,
      ...values(opts, DATETIME_ALLOWED)
    })
  }
  if (arg instanceof FluentNumber) {
    return new FluentDateTime(arg.valueOf(), {
      ...values(opts, DATETIME_ALLOWED)
    })
  }
  throw new TypeError("Invalid argument to DATETIME")
}
;// ./node_modules/@fluent/bundle/esm/memoizer.js
const cache = new Map()
function getMemoizerForLocale (locales) {
  const stringLocale = Array.isArray(locales) ? locales.join(" ") : locales
  let memoizer = cache.get(stringLocale)
  if (memoizer === undefined) {
    memoizer = new Map()
    cache.set(stringLocale, memoizer)
  }
  return memoizer
}
;// ./node_modules/@fluent/bundle/esm/bundle.js





class FluentBundle {
  constructor(locales, {
    functions,
    useIsolating = true,
    transform = v => v
  } = {}) {
    this._terms = new Map()
    this._messages = new Map()
    this.locales = Array.isArray(locales) ? locales : [locales]
    this._functions = {
      NUMBER: NUMBER,
      DATETIME: DATETIME,
      ...functions
    }
    this._useIsolating = useIsolating
    this._transform = transform
    this._intls = getMemoizerForLocale(locales)
  }
  hasMessage (id) {
    return this._messages.has(id)
  }
  getMessage (id) {
    return this._messages.get(id)
  }
  addResource (res, {
    allowOverrides = false
  } = {}) {
    const errors = []
    for (let i = 0; i < res.body.length; i++) {
      let entry = res.body[i]
      if (entry.id.startsWith("-")) {
        if (allowOverrides === false && this._terms.has(entry.id)) {
          errors.push(new Error(`Attempt to override an existing term: "${entry.id}"`))
          continue
        }
        this._terms.set(entry.id, entry)
      } else {
        if (allowOverrides === false && this._messages.has(entry.id)) {
          errors.push(new Error(`Attempt to override an existing message: "${entry.id}"`))
          continue
        }
        this._messages.set(entry.id, entry)
      }
    }
    return errors
  }
  formatPattern (pattern, args = null, errors = null) {
    if (typeof pattern === "string") {
      return this._transform(pattern)
    }
    let scope = new Scope(this, errors, args)
    try {
      let value = resolveComplexPattern(scope, pattern)
      return value.toString(scope)
    } catch (err) {
      if (scope.errors && err instanceof Error) {
        scope.errors.push(err)
        return new FluentNone().toString(scope)
      }
      throw err
    }
  }
}
;// ./node_modules/@fluent/bundle/esm/resource.js
const RE_MESSAGE_START = /^(-?[a-zA-Z][\w-]*) *= */gm
const RE_ATTRIBUTE_START = /\.([a-zA-Z][\w-]*) *= */y
const RE_VARIANT_START = /\*?\[/y
const RE_NUMBER_LITERAL = /(-?[0-9]+(?:\.([0-9]+))?)/y
const RE_IDENTIFIER = /([a-zA-Z][\w-]*)/y
const RE_REFERENCE = /([$-])?([a-zA-Z][\w-]*)(?:\.([a-zA-Z][\w-]*))?/y
const RE_FUNCTION_NAME = /^[A-Z][A-Z0-9_-]*$/
const RE_TEXT_RUN = /([^{}\n\r]+)/y
const RE_STRING_RUN = /([^\\"\n\r]*)/y
const RE_STRING_ESCAPE = /\\([\\"])/y
const RE_UNICODE_ESCAPE = /\\u([a-fA-F0-9]{4})|\\U([a-fA-F0-9]{6})/y
const RE_LEADING_NEWLINES = /^\n+/
const RE_TRAILING_SPACES = / +$/
const RE_BLANK_LINES = / *\r?\n/g
const RE_INDENT = /( *)$/
const TOKEN_BRACE_OPEN = /{\s*/y
const TOKEN_BRACE_CLOSE = /\s*}/y
const TOKEN_BRACKET_OPEN = /\[\s*/y
const TOKEN_BRACKET_CLOSE = /\s*] */y
const TOKEN_PAREN_OPEN = /\s*\(\s*/y
const TOKEN_ARROW = /\s*->\s*/y
const TOKEN_COLON = /\s*:\s*/y
const TOKEN_COMMA = /\s*,?\s*/y
const TOKEN_BLANK = /\s+/y
class FluentResource {
  constructor(source) {
    this.body = []
    RE_MESSAGE_START.lastIndex = 0
    let cursor = 0
    while (true) {
      let next = RE_MESSAGE_START.exec(source)
      if (next === null) {
        break
      }
      cursor = RE_MESSAGE_START.lastIndex
      try {
        this.body.push(parseMessage(next[1]))
      } catch (err) {
        if (err instanceof SyntaxError) {
          continue
        }
        throw err
      }
    }
    function test (re) {
      re.lastIndex = cursor
      return re.test(source)
    }
    function consumeChar (char, errorClass) {
      if (source[cursor] === char) {
        cursor++
        return true
      }
      if (errorClass) {
        throw new errorClass(`Expected ${char}`)
      }
      return false
    }
    function consumeToken (re, errorClass) {
      if (test(re)) {
        cursor = re.lastIndex
        return true
      }
      if (errorClass) {
        throw new errorClass(`Expected ${re.toString()}`)
      }
      return false
    }
    function match (re) {
      re.lastIndex = cursor
      let result = re.exec(source)
      if (result === null) {
        throw new SyntaxError(`Expected ${re.toString()}`)
      }
      cursor = re.lastIndex
      return result
    }
    function match1 (re) {
      return match(re)[1]
    }
    function parseMessage (id) {
      let value = parsePattern()
      let attributes = parseAttributes()
      if (value === null && Object.keys(attributes).length === 0) {
        throw new SyntaxError("Expected message value or attributes")
      }
      return {
        id,
        value,
        attributes
      }
    }
    function parseAttributes () {
      let attrs = Object.create(null)
      while (test(RE_ATTRIBUTE_START)) {
        let name = match1(RE_ATTRIBUTE_START)
        let value = parsePattern()
        if (value === null) {
          throw new SyntaxError("Expected attribute value")
        }
        attrs[name] = value
      }
      return attrs
    }
    function parsePattern () {
      let first
      if (test(RE_TEXT_RUN)) {
        first = match1(RE_TEXT_RUN)
      }
      if (source[cursor] === "{" || source[cursor] === "}") {
        return parsePatternElements(first ? [first] : [], Infinity)
      }
      let indent = parseIndent()
      if (indent) {
        if (first) {
          return parsePatternElements([first, indent], indent.length)
        }
        indent.value = trim(indent.value, RE_LEADING_NEWLINES)
        return parsePatternElements([indent], indent.length)
      }
      if (first) {
        return trim(first, RE_TRAILING_SPACES)
      }
      return null
    }
    function parsePatternElements (elements = [], commonIndent) {
      while (true) {
        if (test(RE_TEXT_RUN)) {
          elements.push(match1(RE_TEXT_RUN))
          continue
        }
        if (source[cursor] === "{") {
          elements.push(parsePlaceable())
          continue
        }
        if (source[cursor] === "}") {
          throw new SyntaxError("Unbalanced closing brace")
        }
        let indent = parseIndent()
        if (indent) {
          elements.push(indent)
          commonIndent = Math.min(commonIndent, indent.length)
          continue
        }
        break
      }
      let lastIndex = elements.length - 1
      let lastElement = elements[lastIndex]
      if (typeof lastElement === "string") {
        elements[lastIndex] = trim(lastElement, RE_TRAILING_SPACES)
      }
      let baked = []
      for (let element of elements) {
        if (element instanceof Indent) {
          element = element.value.slice(0, element.value.length - commonIndent)
        }
        if (element) {
          baked.push(element)
        }
      }
      return baked
    }
    function parsePlaceable () {
      consumeToken(TOKEN_BRACE_OPEN, SyntaxError)
      let selector = parseInlineExpression()
      if (consumeToken(TOKEN_BRACE_CLOSE)) {
        return selector
      }
      if (consumeToken(TOKEN_ARROW)) {
        let variants = parseVariants()
        consumeToken(TOKEN_BRACE_CLOSE, SyntaxError)
        return {
          type: "select",
          selector,
          ...variants
        }
      }
      throw new SyntaxError("Unclosed placeable")
    }
    function parseInlineExpression () {
      if (source[cursor] === "{") {
        return parsePlaceable()
      }
      if (test(RE_REFERENCE)) {
        let [, sigil, name, attr = null] = match(RE_REFERENCE)
        if (sigil === "$") {
          return {
            type: "var",
            name
          }
        }
        if (consumeToken(TOKEN_PAREN_OPEN)) {
          let args = parseArguments()
          if (sigil === "-") {
            return {
              type: "term",
              name,
              attr,
              args
            }
          }
          if (RE_FUNCTION_NAME.test(name)) {
            return {
              type: "func",
              name,
              args
            }
          }
          throw new SyntaxError("Function names must be all upper-case")
        }
        if (sigil === "-") {
          return {
            type: "term",
            name,
            attr,
            args: []
          }
        }
        return {
          type: "mesg",
          name,
          attr
        }
      }
      return parseLiteral()
    }
    function parseArguments () {
      let args = []
      while (true) {
        switch (source[cursor]) {
          case ")":
            cursor++
            return args
          case undefined:
            throw new SyntaxError("Unclosed argument list")
        }
        args.push(parseArgument())
        consumeToken(TOKEN_COMMA)
      }
    }
    function parseArgument () {
      let expr = parseInlineExpression()
      if (expr.type !== "mesg") {
        return expr
      }
      if (consumeToken(TOKEN_COLON)) {
        return {
          type: "narg",
          name: expr.name,
          value: parseLiteral()
        }
      }
      return expr
    }
    function parseVariants () {
      let variants = []
      let count = 0
      let star
      while (test(RE_VARIANT_START)) {
        if (consumeChar("*")) {
          star = count
        }
        let key = parseVariantKey()
        let value = parsePattern()
        if (value === null) {
          throw new SyntaxError("Expected variant value")
        }
        variants[count++] = {
          key,
          value
        }
      }
      if (count === 0) {
        return null
      }
      if (star === undefined) {
        throw new SyntaxError("Expected default variant")
      }
      return {
        variants,
        star
      }
    }
    function parseVariantKey () {
      consumeToken(TOKEN_BRACKET_OPEN, SyntaxError)
      let key
      if (test(RE_NUMBER_LITERAL)) {
        key = parseNumberLiteral()
      } else {
        key = {
          type: "str",
          value: match1(RE_IDENTIFIER)
        }
      }
      consumeToken(TOKEN_BRACKET_CLOSE, SyntaxError)
      return key
    }
    function parseLiteral () {
      if (test(RE_NUMBER_LITERAL)) {
        return parseNumberLiteral()
      }
      if (source[cursor] === '"') {
        return parseStringLiteral()
      }
      throw new SyntaxError("Invalid expression")
    }
    function parseNumberLiteral () {
      let [, value, fraction = ""] = match(RE_NUMBER_LITERAL)
      let precision = fraction.length
      return {
        type: "num",
        value: parseFloat(value),
        precision
      }
    }
    function parseStringLiteral () {
      consumeChar('"', SyntaxError)
      let value = ""
      while (true) {
        value += match1(RE_STRING_RUN)
        if (source[cursor] === "\\") {
          value += parseEscapeSequence()
          continue
        }
        if (consumeChar('"')) {
          return {
            type: "str",
            value
          }
        }
        throw new SyntaxError("Unclosed string literal")
      }
    }
    function parseEscapeSequence () {
      if (test(RE_STRING_ESCAPE)) {
        return match1(RE_STRING_ESCAPE)
      }
      if (test(RE_UNICODE_ESCAPE)) {
        let [, codepoint4, codepoint6] = match(RE_UNICODE_ESCAPE)
        let codepoint = parseInt(codepoint4 || codepoint6, 16)
        return codepoint <= 0xd7ff || 0xe000 <= codepoint ? String.fromCodePoint(codepoint) : "�"
      }
      throw new SyntaxError("Unknown escape sequence")
    }
    function parseIndent () {
      let start = cursor
      consumeToken(TOKEN_BLANK)
      switch (source[cursor]) {
        case ".":
        case "[":
        case "*":
        case "}":
        case undefined:
          return false
        case "{":
          return makeIndent(source.slice(start, cursor))
      }
      if (source[cursor - 1] === " ") {
        return makeIndent(source.slice(start, cursor))
      }
      return false
    }
    function trim (text, re) {
      return text.replace(re, "")
    }
    function makeIndent (blank) {
      let value = blank.replace(RE_BLANK_LINES, "\n")
      let length = RE_INDENT.exec(blank)[1].length
      return new Indent(value, length)
    }
  }
}
class Indent {
  constructor(value, length) {
    this.value = value
    this.length = length
  }
}
// ./node_modules/@fluent/bundle/esm/index.js



;// ./node_modules/@fluent/dom/esm/overlay.js
const reOverlay = /<|&#?\w+;/
const TEXT_LEVEL_ELEMENTS = {
  "http://www.w3.org/1999/xhtml": ["em", "strong", "small", "s", "cite", "q", "dfn", "abbr", "data", "time", "code", "var", "samp", "kbd", "sub", "sup", "i", "b", "u", "mark", "bdi", "bdo", "span", "br", "wbr"]
}
const LOCALIZABLE_ATTRIBUTES = {
  "http://www.w3.org/1999/xhtml": {
    global: ["title", "aria-label", "aria-valuetext"],
    a: ["download"],
    area: ["download", "alt"],
    input: ["alt", "placeholder"],
    menuitem: ["label"],
    menu: ["label"],
    optgroup: ["label"],
    option: ["label"],
    track: ["label"],
    img: ["alt"],
    textarea: ["placeholder"],
    th: ["abbr"]
  },
  "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul": {
    global: ["accesskey", "aria-label", "aria-valuetext", "label", "title", "tooltiptext"],
    description: ["value"],
    key: ["key", "keycode"],
    label: ["value"],
    textbox: ["placeholder", "value"]
  }
}
function translateElement (element, translation) {
  const {
    value
  } = translation
  if (typeof value === "string") {
    if (element.localName === "title" && element.namespaceURI === "http://www.w3.org/1999/xhtml") {
      element.textContent = value
    } else if (!reOverlay.test(value)) {
      element.textContent = value
    } else {
      const templateElement = element.ownerDocument.createElementNS("http://www.w3.org/1999/xhtml", "template")
      templateElement.innerHTML = value
      overlayChildNodes(templateElement.content, element)
    }
  }
  overlayAttributes(translation, element)
}
function overlayChildNodes (fromFragment, toElement) {
  for (const childNode of fromFragment.childNodes) {
    if (childNode.nodeType === childNode.TEXT_NODE) {
      continue
    }
    if (childNode.hasAttribute("data-l10n-name")) {
      const sanitized = getNodeForNamedElement(toElement, childNode)
      fromFragment.replaceChild(sanitized, childNode)
      continue
    }
    if (isElementAllowed(childNode)) {
      const sanitized = createSanitizedElement(childNode)
      fromFragment.replaceChild(sanitized, childNode)
      continue
    }
    console.warn(`An element of forbidden type "${childNode.localName}" was found in ` + "the translation. Only safe text-level elements and elements with " + "data-l10n-name are allowed.")
    fromFragment.replaceChild(createTextNodeFromTextContent(childNode), childNode)
  }
  toElement.textContent = ""
  toElement.appendChild(fromFragment)
}
function hasAttribute (attributes, name) {
  if (!attributes) {
    return false
  }
  for (let attr of attributes) {
    if (attr.name === name) {
      return true
    }
  }
  return false
}
function overlayAttributes (fromElement, toElement) {
  const explicitlyAllowed = toElement.hasAttribute("data-l10n-attrs") ? toElement.getAttribute("data-l10n-attrs").split(",").map(i => i.trim()) : null
  for (const attr of Array.from(toElement.attributes)) {
    if (isAttrNameLocalizable(attr.name, toElement, explicitlyAllowed) && !hasAttribute(fromElement.attributes, attr.name)) {
      toElement.removeAttribute(attr.name)
    }
  }
  if (!fromElement.attributes) {
    return
  }
  for (const attr of Array.from(fromElement.attributes)) {
    if (isAttrNameLocalizable(attr.name, toElement, explicitlyAllowed) && toElement.getAttribute(attr.name) !== attr.value) {
      toElement.setAttribute(attr.name, attr.value)
    }
  }
}
function getNodeForNamedElement (sourceElement, translatedChild) {
  const childName = translatedChild.getAttribute("data-l10n-name")
  const sourceChild = sourceElement.querySelector(`[data-l10n-name="${childName}"]`)
  if (!sourceChild) {
    console.warn(`An element named "${childName}" wasn't found in the source.`)
    return createTextNodeFromTextContent(translatedChild)
  }
  if (sourceChild.localName !== translatedChild.localName) {
    console.warn(`An element named "${childName}" was found in the translation ` + `but its type ${translatedChild.localName} didn't match the ` + `element found in the source (${sourceChild.localName}).`)
    return createTextNodeFromTextContent(translatedChild)
  }
  sourceElement.removeChild(sourceChild)
  const clone = sourceChild.cloneNode(false)
  return shallowPopulateUsing(translatedChild, clone)
}
function createSanitizedElement (element) {
  const clone = element.ownerDocument.createElement(element.localName)
  return shallowPopulateUsing(element, clone)
}
function createTextNodeFromTextContent (element) {
  return element.ownerDocument.createTextNode(element.textContent)
}
function isElementAllowed (element) {
  const allowed = TEXT_LEVEL_ELEMENTS[element.namespaceURI]
  return allowed && allowed.includes(element.localName)
}
function isAttrNameLocalizable (name, element, explicitlyAllowed = null) {
  if (explicitlyAllowed && explicitlyAllowed.includes(name)) {
    return true
  }
  const allowed = LOCALIZABLE_ATTRIBUTES[element.namespaceURI]
  if (!allowed) {
    return false
  }
  const attrName = name.toLowerCase()
  const elemName = element.localName
  if (allowed.global.includes(attrName)) {
    return true
  }
  if (!allowed[elemName]) {
    return false
  }
  if (allowed[elemName].includes(attrName)) {
    return true
  }
  if (element.namespaceURI === "http://www.w3.org/1999/xhtml" && elemName === "input" && attrName === "value") {
    const type = element.type.toLowerCase()
    if (type === "submit" || type === "button" || type === "reset") {
      return true
    }
  }
  return false
}
function shallowPopulateUsing (fromElement, toElement) {
  toElement.textContent = fromElement.textContent
  overlayAttributes(fromElement, toElement)
  return toElement
}
;// ./node_modules/cached-iterable/src/cached_iterable.mjs
class CachedIterable extends Array {
  static from (iterable) {
    if (iterable instanceof this) {
      return iterable
    }
    return new this(iterable)
  }
}
;// ./node_modules/cached-iterable/src/cached_sync_iterable.mjs

class CachedSyncIterable extends CachedIterable {
  constructor(iterable) {
    super()
    if (Symbol.iterator in Object(iterable)) {
      this.iterator = iterable[Symbol.iterator]()
    } else {
      throw new TypeError("Argument must implement the iteration protocol.")
    }
  }
  [Symbol.iterator] () {
    const cached = this
    let cur = 0
    return {
      next () {
        if (cached.length <= cur) {
          cached.push(cached.iterator.next())
        }
        return cached[cur++]
      }
    }
  }
  touchNext (count = 1) {
    let idx = 0
    while (idx++ < count) {
      const last = this[this.length - 1]
      if (last && last.done) {
        break
      }
      this.push(this.iterator.next())
    }
    return this[this.length - 1]
  }
}
;// ./node_modules/cached-iterable/src/cached_async_iterable.mjs

class CachedAsyncIterable extends CachedIterable {
  constructor(iterable) {
    super()
    if (Symbol.asyncIterator in Object(iterable)) {
      this.iterator = iterable[Symbol.asyncIterator]()
    } else if (Symbol.iterator in Object(iterable)) {
      this.iterator = iterable[Symbol.iterator]()
    } else {
      throw new TypeError("Argument must implement the iteration protocol.")
    }
  }
  [Symbol.asyncIterator] () {
    const cached = this
    let cur = 0
    return {
      async next () {
        if (cached.length <= cur) {
          cached.push(cached.iterator.next())
        }
        return cached[cur++]
      }
    }
  }
  async touchNext (count = 1) {
    let idx = 0
    while (idx++ < count) {
      const last = this[this.length - 1]
      if (last && (await last).done) {
        break
      }
      this.push(this.iterator.next())
    }
    return this[this.length - 1]
  }
}
// ./node_modules/cached-iterable/src/index.mjs


;// ./node_modules/@fluent/dom/esm/localization.js

class Localization {
  constructor(resourceIds = [], generateBundles) {
    this.resourceIds = resourceIds
    this.generateBundles = generateBundles
    this.onChange(true)
  }
  addResourceIds (resourceIds, eager = false) {
    this.resourceIds.push(...resourceIds)
    this.onChange(eager)
    return this.resourceIds.length
  }
  removeResourceIds (resourceIds) {
    this.resourceIds = this.resourceIds.filter(r => !resourceIds.includes(r))
    this.onChange()
    return this.resourceIds.length
  }
  async formatWithFallback (keys, method) {
    const translations = []
    let hasAtLeastOneBundle = false
    for await (const bundle of this.bundles) {
      hasAtLeastOneBundle = true
      const missingIds = keysFromBundle(method, bundle, keys, translations)
      if (missingIds.size === 0) {
        break
      }
      if (typeof console !== "undefined") {
        const locale = bundle.locales[0]
        const ids = Array.from(missingIds).join(", ")
        console.warn(`[fluent] Missing translations in ${locale}: ${ids}`)
      }
    }
    if (!hasAtLeastOneBundle && typeof console !== "undefined") {
      console.warn(`[fluent] Request for keys failed because no resource bundles got generated.
  keys: ${JSON.stringify(keys)}.
  resourceIds: ${JSON.stringify(this.resourceIds)}.`)
    }
    return translations
  }
  formatMessages (keys) {
    return this.formatWithFallback(keys, messageFromBundle)
  }
  formatValues (keys) {
    return this.formatWithFallback(keys, valueFromBundle)
  }
  async formatValue (id, args) {
    const [val] = await this.formatValues([{
      id,
      args
    }])
    return val
  }
  handleEvent () {
    this.onChange()
  }
  onChange (eager = false) {
    this.bundles = CachedAsyncIterable.from(this.generateBundles(this.resourceIds))
    if (eager) {
      this.bundles.touchNext(2)
    }
  }
}
function valueFromBundle (bundle, errors, message, args) {
  if (message.value) {
    return bundle.formatPattern(message.value, args, errors)
  }
  return null
}
function messageFromBundle (bundle, errors, message, args) {
  const formatted = {
    value: null,
    attributes: null
  }
  if (message.value) {
    formatted.value = bundle.formatPattern(message.value, args, errors)
  }
  let attrNames = Object.keys(message.attributes)
  if (attrNames.length > 0) {
    formatted.attributes = new Array(attrNames.length)
    for (let [i, name] of attrNames.entries()) {
      let value = bundle.formatPattern(message.attributes[name], args, errors)
      formatted.attributes[i] = {
        name,
        value
      }
    }
  }
  return formatted
}
function keysFromBundle (method, bundle, keys, translations) {
  const messageErrors = []
  const missingIds = new Set()
  keys.forEach(({
    id,
    args
  }, i) => {
    if (translations[i] !== undefined) {
      return
    }
    let message = bundle.getMessage(id)
    if (message) {
      messageErrors.length = 0
      translations[i] = method(bundle, messageErrors, message, args)
      if (messageErrors.length > 0 && typeof console !== "undefined") {
        const locale = bundle.locales[0]
        const errors = messageErrors.join(", ")
        console.warn(`[fluent][resolver] errors in ${locale}/${id}: ${errors}.`)
      }
    } else {
      missingIds.add(id)
    }
  })
  return missingIds
}
;// ./node_modules/@fluent/dom/esm/dom_localization.js


const L10NID_ATTR_NAME = "data-l10n-id"
const L10NARGS_ATTR_NAME = "data-l10n-args"
const L10N_ELEMENT_QUERY = `[${L10NID_ATTR_NAME}]`
class DOMLocalization extends Localization {
  constructor(resourceIds, generateBundles) {
    super(resourceIds, generateBundles)
    this.roots = new Set()
    this.pendingrAF = null
    this.pendingElements = new Set()
    this.windowElement = null
    this.mutationObserver = null
    this.observerConfig = {
      attributes: true,
      characterData: false,
      childList: true,
      subtree: true,
      attributeFilter: [L10NID_ATTR_NAME, L10NARGS_ATTR_NAME]
    }
  }
  onChange (eager = false) {
    super.onChange(eager)
    if (this.roots) {
      this.translateRoots()
    }
  }
  setAttributes (element, id, args) {
    element.setAttribute(L10NID_ATTR_NAME, id)
    if (args) {
      element.setAttribute(L10NARGS_ATTR_NAME, JSON.stringify(args))
    } else {
      element.removeAttribute(L10NARGS_ATTR_NAME)
    }
    return element
  }
  getAttributes (element) {
    return {
      id: element.getAttribute(L10NID_ATTR_NAME),
      args: JSON.parse(element.getAttribute(L10NARGS_ATTR_NAME) || null)
    }
  }
  connectRoot (newRoot) {
    for (const root of this.roots) {
      if (root === newRoot || root.contains(newRoot) || newRoot.contains(root)) {
        throw new Error("Cannot add a root that overlaps with existing root.")
      }
    }
    if (this.windowElement) {
      if (this.windowElement !== newRoot.ownerDocument.defaultView) {
        throw new Error(`Cannot connect a root:
          DOMLocalization already has a root from a different window.`)
      }
    } else {
      this.windowElement = newRoot.ownerDocument.defaultView
      this.mutationObserver = new this.windowElement.MutationObserver(mutations => this.translateMutations(mutations))
    }
    this.roots.add(newRoot)
    this.mutationObserver.observe(newRoot, this.observerConfig)
  }
  disconnectRoot (root) {
    this.roots.delete(root)
    this.pauseObserving()
    if (this.roots.size === 0) {
      this.mutationObserver = null
      if (this.windowElement && this.pendingrAF) {
        this.windowElement.cancelAnimationFrame(this.pendingrAF)
      }
      this.windowElement = null
      this.pendingrAF = null
      this.pendingElements.clear()
      return true
    }
    this.resumeObserving()
    return false
  }
  translateRoots () {
    const roots = Array.from(this.roots)
    return Promise.all(roots.map(root => this.translateFragment(root)))
  }
  pauseObserving () {
    if (!this.mutationObserver) {
      return
    }
    this.translateMutations(this.mutationObserver.takeRecords())
    this.mutationObserver.disconnect()
  }
  resumeObserving () {
    if (!this.mutationObserver) {
      return
    }
    for (const root of this.roots) {
      this.mutationObserver.observe(root, this.observerConfig)
    }
  }
  translateMutations (mutations) {
    for (const mutation of mutations) {
      switch (mutation.type) {
        case "attributes":
          if (mutation.target.hasAttribute("data-l10n-id")) {
            this.pendingElements.add(mutation.target)
          }
          break
        case "childList":
          for (const addedNode of mutation.addedNodes) {
            if (addedNode.nodeType === addedNode.ELEMENT_NODE) {
              if (addedNode.childElementCount) {
                for (const element of this.getTranslatables(addedNode)) {
                  this.pendingElements.add(element)
                }
              } else if (addedNode.hasAttribute(L10NID_ATTR_NAME)) {
                this.pendingElements.add(addedNode)
              }
            }
          }
          break
      }
    }
    if (this.pendingElements.size > 0) {
      if (this.pendingrAF === null) {
        this.pendingrAF = this.windowElement.requestAnimationFrame(() => {
          this.translateElements(Array.from(this.pendingElements))
          this.pendingElements.clear()
          this.pendingrAF = null
        })
      }
    }
  }
  translateFragment (frag) {
    return this.translateElements(this.getTranslatables(frag))
  }
  async translateElements (elements) {
    if (!elements.length) {
      return undefined
    }
    const keys = elements.map(this.getKeysForElement)
    const translations = await this.formatMessages(keys)
    return this.applyTranslations(elements, translations)
  }
  applyTranslations (elements, translations) {
    this.pauseObserving()
    for (let i = 0; i < elements.length; i++) {
      if (translations[i] !== undefined) {
        translateElement(elements[i], translations[i])
      }
    }
    this.resumeObserving()
  }
  getTranslatables (element) {
    const nodes = Array.from(element.querySelectorAll(L10N_ELEMENT_QUERY))
    if (typeof element.hasAttribute === "function" && element.hasAttribute(L10NID_ATTR_NAME)) {
      nodes.push(element)
    }
    return nodes
  }
  getKeysForElement (element) {
    return {
      id: element.getAttribute(L10NID_ATTR_NAME),
      args: JSON.parse(element.getAttribute(L10NARGS_ATTR_NAME) || null)
    }
  }
}
// ./node_modules/@fluent/dom/esm/index.js


;// ./web/l10n.js
class L10n {
  #dir
  #elements
  #lang
  #l10n
  constructor({
    lang,
    isRTL
  }, l10n = null) {
    this.#lang = L10n.#fixupLangCode(lang)
    this.#l10n = l10n
    this.#dir = isRTL ?? L10n.#isRTL(this.#lang) ? "rtl" : "ltr"
  }
  _setL10n (l10n) {
    this.#l10n = l10n
  }
  getLanguage () {
    return this.#lang
  }
  getDirection () {
    return this.#dir
  }
  async get (ids, args = null, fallback) {
    if (Array.isArray(ids)) {
      ids = ids.map(id => ({
        id
      }))
      const messages = await this.#l10n.formatMessages(ids)
      return messages.map(message => message.value)
    }
    const messages = await this.#l10n.formatMessages([{
      id: ids,
      args
    }])
    return messages[0]?.value || fallback
  }
  async translate (element) {
    (this.#elements ||= new Set()).add(element)
    try {
      this.#l10n.connectRoot(element)
      await this.#l10n.translateRoots()
    } catch { }
  }
  async translateOnce (element) {
    try {
      await this.#l10n.translateElements([element])
    } catch (ex) {
      console.error("translateOnce:", ex)
    }
  }
  async destroy () {
    if (this.#elements) {
      for (const element of this.#elements) {
        this.#l10n.disconnectRoot(element)
      }
      this.#elements.clear()
      this.#elements = null
    }
    this.#l10n.pauseObserving()
  }
  pause () {
    this.#l10n.pauseObserving()
  }
  resume () {
    this.#l10n.resumeObserving()
  }
  static #fixupLangCode (langCode) {
    langCode = langCode?.toLowerCase() || "en-us"
    const PARTIAL_LANG_CODES = {
      en: "en-us",
      es: "es-es",
      fy: "fy-nl",
      ga: "ga-ie",
      gu: "gu-in",
      hi: "hi-in",
      hy: "hy-am",
      nb: "nb-no",
      ne: "ne-np",
      nn: "nn-no",
      pa: "pa-in",
      pt: "pt-pt",
      sv: "sv-se",
      zh: "zh-cn"
    }
    return PARTIAL_LANG_CODES[langCode] || langCode
  }
  static #isRTL (lang) {
    const shortCode = lang.split("-", 1)[0]
    return ["ar", "he", "fa", "ps", "ur"].includes(shortCode)
  }
}
const GenericL10n = null

// ./web/genericl10n.js




function createBundle (lang, text) {
  const resource = new FluentResource(text)
  const bundle = new FluentBundle(lang)
  const errors = bundle.addResource(resource)
  if (errors.length) {
    console.error("L10n errors", errors)
  }
  return bundle
}
class genericl10n_GenericL10n extends L10n {
  constructor(lang) {
    super({
      lang
    })
    const generateBundles = !lang ? genericl10n_GenericL10n.#generateBundlesFallback.bind(genericl10n_GenericL10n, this.getLanguage()) : genericl10n_GenericL10n.#generateBundles.bind(genericl10n_GenericL10n, "en-us", this.getLanguage())
    this._setL10n(new DOMLocalization([], generateBundles))
  }
  static async *#generateBundles (defaultLang, baseLang) {
    const {
      baseURL,
      paths
    } = await this.#getPaths()
    const langs = [baseLang]
    if (defaultLang !== baseLang) {
      const shortLang = baseLang.split("-", 1)[0]
      if (shortLang !== baseLang) {
        langs.push(shortLang)
      }
      langs.push(defaultLang)
    }
    for (const lang of langs) {
      const bundle = await this.#createBundle(lang, baseURL, paths)
      if (bundle) {
        yield bundle
      } else if (lang === "en-us") {
        yield this.#createBundleFallback(lang)
      }
    }
  }
  static async #createBundle (lang, baseURL, paths) {
    const path = paths[lang]
    if (!path) {
      return null
    }
    const url = new URL(path, baseURL)
    const text = await fetchData(url, "text")
    return createBundle(lang, text)
  }
  static async #getPaths () {
    try {
      const {
        href
      } = document.querySelector(`link[type="application/l10n"]`)
      const paths = await fetchData(href, "json")
      return {
        baseURL: href.replace(/[^/]*$/, "") || "./",
        paths
      }
    } catch { }
    return {
      baseURL: "./",
      paths: Object.create(null)
    }
  }
  static async *#generateBundlesFallback (lang) {
    yield this.#createBundleFallback(lang)
  }
  static async #createBundleFallback (lang) {
    const text = "pdfjs-previous-button =\n    .title = Previous Page\npdfjs-previous-button-label = Previous\npdfjs-next-button =\n    .title = Next Page\npdfjs-next-button-label = Next\npdfjs-page-input =\n    .title = Page\npdfjs-of-pages = of { $pagesCount }\npdfjs-page-of-pages = ({ $pageNumber } of { $pagesCount })\npdfjs-zoom-out-button =\n    .title = Zoom Out\npdfjs-zoom-out-button-label = Zoom Out\npdfjs-zoom-in-button =\n    .title = Zoom In\npdfjs-zoom-in-button-label = Zoom In\npdfjs-zoom-select =\n    .title = Zoom\npdfjs-presentation-mode-button =\n    .title = Switch to Presentation Mode\npdfjs-presentation-mode-button-label = Presentation Mode\npdfjs-open-file-button =\n    .title = Open File\npdfjs-open-file-button-label = Open\npdfjs-print-button =\n    .title = Print\npdfjs-print-button-label = Print\npdfjs-save-button =\n    .title = Save\npdfjs-save-button-label = Save\npdfjs-download-button =\n    .title = Download\npdfjs-download-button-label = Download\npdfjs-bookmark-button =\n    .title = Current Page (View URL from Current Page)\npdfjs-bookmark-button-label = Current Page\npdfjs-tools-button =\n    .title = Tools\npdfjs-tools-button-label = Tools\npdfjs-first-page-button =\n    .title = Go to First Page\npdfjs-first-page-button-label = Go to First Page\npdfjs-last-page-button =\n    .title = Go to Last Page\npdfjs-last-page-button-label = Go to Last Page\npdfjs-page-rotate-cw-button =\n    .title = Rotate Clockwise\npdfjs-page-rotate-cw-button-label = Rotate Clockwise\npdfjs-page-rotate-ccw-button =\n    .title = Rotate Counterclockwise\npdfjs-page-rotate-ccw-button-label = Rotate Counterclockwise\npdfjs-cursor-text-select-tool-button =\n    .title = Enable Text Selection Tool\npdfjs-cursor-text-select-tool-button-label = Text Selection Tool\npdfjs-cursor-hand-tool-button =\n    .title = Enable Hand Tool\npdfjs-cursor-hand-tool-button-label = Hand Tool\npdfjs-scroll-page-button =\n    .title = Use Page Scrolling\npdfjs-scroll-page-button-label = Page Scrolling\npdfjs-scroll-vertical-button =\n    .title = Use Vertical Scrolling\npdfjs-scroll-vertical-button-label = Vertical Scrolling\npdfjs-scroll-horizontal-button =\n    .title = Use Horizontal Scrolling\npdfjs-scroll-horizontal-button-label = Horizontal Scrolling\npdfjs-scroll-wrapped-button =\n    .title = Use Wrapped Scrolling\npdfjs-scroll-wrapped-button-label = Wrapped Scrolling\npdfjs-spread-none-button =\n    .title = Do not join page spreads\npdfjs-spread-none-button-label = No Spreads\npdfjs-spread-odd-button =\n    .title = Join page spreads starting with odd-numbered pages\npdfjs-spread-odd-button-label = Odd Spreads\npdfjs-spread-even-button =\n    .title = Join page spreads starting with even-numbered pages\npdfjs-spread-even-button-label = Even Spreads\npdfjs-document-properties-button =\n    .title = Document Properties\u2026\npdfjs-document-properties-button-label = Document Properties\u2026\npdfjs-document-properties-file-name = File name:\npdfjs-document-properties-file-size = File size:\npdfjs-document-properties-size-kb = { NUMBER($kb, maximumSignificantDigits: 3) } KB ({ $b } bytes)\npdfjs-document-properties-size-mb = { NUMBER($mb, maximumSignificantDigits: 3) } MB ({ $b } bytes)\npdfjs-document-properties-title = Title:\npdfjs-document-properties-author = Author:\npdfjs-document-properties-subject = Subject:\npdfjs-document-properties-keywords = Keywords:\npdfjs-document-properties-creation-date = Creation Date:\npdfjs-document-properties-modification-date = Modification Date:\npdfjs-document-properties-date-time-string = { DATETIME($dateObj, dateStyle: \"short\", timeStyle: \"medium\") }\npdfjs-document-properties-creator = Creator:\npdfjs-document-properties-producer = PDF Producer:\npdfjs-document-properties-version = PDF Version:\npdfjs-document-properties-page-count = Page Count:\npdfjs-document-properties-page-size = Page Size:\npdfjs-document-properties-page-size-unit-inches = in\npdfjs-document-properties-page-size-unit-millimeters = mm\npdfjs-document-properties-page-size-orientation-portrait = portrait\npdfjs-document-properties-page-size-orientation-landscape = landscape\npdfjs-document-properties-page-size-name-a-three = A3\npdfjs-document-properties-page-size-name-a-four = A4\npdfjs-document-properties-page-size-name-letter = Letter\npdfjs-document-properties-page-size-name-legal = Legal\npdfjs-document-properties-page-size-dimension-string = { $width } \xD7 { $height } { $unit } ({ $orientation })\npdfjs-document-properties-page-size-dimension-name-string = { $width } \xD7 { $height } { $unit } ({ $name }, { $orientation })\npdfjs-document-properties-linearized = Fast Web View:\npdfjs-document-properties-linearized-yes = Yes\npdfjs-document-properties-linearized-no = No\npdfjs-document-properties-close-button = Close\npdfjs-print-progress-message = Preparing document for printing\u2026\npdfjs-print-progress-percent = { $progress }%\npdfjs-print-progress-close-button = Cancel\npdfjs-printing-not-supported = Warning: Printing is not fully supported by this browser.\npdfjs-printing-not-ready = Warning: The PDF is not fully loaded for printing.\npdfjs-toggle-sidebar-button =\n    .title = Toggle Sidebar\npdfjs-toggle-sidebar-notification-button =\n    .title = Toggle Sidebar (document contains outline/attachments/layers)\npdfjs-toggle-sidebar-button-label = Toggle Sidebar\npdfjs-document-outline-button =\n    .title = Show Document Outline (double-click to expand/collapse all items)\npdfjs-document-outline-button-label = Document Outline\npdfjs-attachments-button =\n    .title = Show Attachments\npdfjs-attachments-button-label = Attachments\npdfjs-layers-button =\n    .title = Show Layers (double-click to reset all layers to the default state)\npdfjs-layers-button-label = Layers\npdfjs-thumbs-button =\n    .title = Show Thumbnails\npdfjs-thumbs-button-label = Thumbnails\npdfjs-current-outline-item-button =\n    .title = Find Current Outline Item\npdfjs-current-outline-item-button-label = Current Outline Item\npdfjs-findbar-button =\n    .title = Find in Document\npdfjs-findbar-button-label = Find\npdfjs-additional-layers = Additional Layers\npdfjs-thumb-page-title =\n    .title = Page { $page }\npdfjs-thumb-page-canvas =\n    .aria-label = Thumbnail of Page { $page }\npdfjs-find-input =\n    .title = Find\n    .placeholder = Find in document\u2026\npdfjs-find-previous-button =\n    .title = Find the previous occurrence of the phrase\npdfjs-find-previous-button-label = Previous\npdfjs-find-next-button =\n    .title = Find the next occurrence of the phrase\npdfjs-find-next-button-label = Next\npdfjs-find-highlight-checkbox = Highlight All\npdfjs-find-match-case-checkbox-label = Match Case\npdfjs-find-match-diacritics-checkbox-label = Match Diacritics\npdfjs-find-entire-word-checkbox-label = Whole Words\npdfjs-find-reached-top = Reached top of document, continued from bottom\npdfjs-find-reached-bottom = Reached end of document, continued from top\npdfjs-find-match-count =\n    { $total ->\n        [one] { $current } of { $total } match\n       *[other] { $current } of { $total } matches\n    }\npdfjs-find-match-count-limit =\n    { $limit ->\n        [one] More than { $limit } match\n       *[other] More than { $limit } matches\n    }\npdfjs-find-not-found = Phrase not found\npdfjs-page-scale-width = Page Width\npdfjs-page-scale-fit = Page Fit\npdfjs-page-scale-auto = Automatic Zoom\npdfjs-page-scale-actual = Actual Size\npdfjs-page-scale-percent = { $scale }%\npdfjs-page-landmark =\n    .aria-label = Page { $page }\npdfjs-loading-error = An error occurred while loading the PDF.\npdfjs-invalid-file-error = Invalid or corrupted PDF file.\npdfjs-missing-file-error = Missing PDF file.\npdfjs-unexpected-response-error = Unexpected server response.\npdfjs-rendering-error = An error occurred while rendering the page.\npdfjs-annotation-date-time-string = { DATETIME($dateObj, dateStyle: \"short\", timeStyle: \"medium\") }\npdfjs-text-annotation-type =\n    .alt = [{ $type } Annotation]\npdfjs-password-label = Enter the password to open this PDF file.\npdfjs-password-invalid = Invalid password. Please try again.\npdfjs-password-ok-button = OK\npdfjs-password-cancel-button = Cancel\npdfjs-web-fonts-disabled = Web fonts are disabled: unable to use embedded PDF fonts.\npdfjs-editor-free-text-button =\n    .title = Text\npdfjs-editor-free-text-button-label = Text\npdfjs-editor-ink-button =\n    .title = Draw\npdfjs-editor-ink-button-label = Draw\npdfjs-editor-stamp-button =\n    .title = Add or edit images\npdfjs-editor-stamp-button-label = Add or edit images\npdfjs-editor-highlight-button =\n    .title = Highlight\npdfjs-editor-highlight-button-label = Highlight\npdfjs-highlight-floating-button1 =\n    .title = Highlight\n    .aria-label = Highlight\npdfjs-highlight-floating-button-label = Highlight\npdfjs-editor-remove-ink-button =\n    .title = Remove drawing\npdfjs-editor-remove-freetext-button =\n    .title = Remove text\npdfjs-editor-remove-stamp-button =\n    .title = Remove image\npdfjs-editor-remove-highlight-button =\n    .title = Remove highlight\npdfjs-editor-free-text-color-input = Color\npdfjs-editor-free-text-size-input = Size\npdfjs-editor-ink-color-input = Color\npdfjs-editor-ink-thickness-input = Thickness\npdfjs-editor-ink-opacity-input = Opacity\npdfjs-editor-stamp-add-image-button =\n    .title = Add image\npdfjs-editor-stamp-add-image-button-label = Add image\npdfjs-editor-free-highlight-thickness-input = Thickness\npdfjs-editor-free-highlight-thickness-title =\n    .title = Change thickness when highlighting items other than text\npdfjs-free-text2 =\n    .aria-label = Text Editor\n    .default-content = Start typing\u2026\npdfjs-ink =\n    .aria-label = Draw Editor\npdfjs-ink-canvas =\n    .aria-label = User-created image\npdfjs-editor-alt-text-button =\n    .aria-label = Alt text\npdfjs-editor-alt-text-button-label = Alt text\npdfjs-editor-alt-text-edit-button =\n    .aria-label = Edit alt text\npdfjs-editor-alt-text-dialog-label = Choose an option\npdfjs-editor-alt-text-dialog-description = Alt text (alternative text) helps when people can\u2019t see the image or when it doesn\u2019t load.\npdfjs-editor-alt-text-add-description-label = Add a description\npdfjs-editor-alt-text-add-description-description = Aim for 1-2 sentences that describe the subject, setting, or actions.\npdfjs-editor-alt-text-mark-decorative-label = Mark as decorative\npdfjs-editor-alt-text-mark-decorative-description = This is used for ornamental images, like borders or watermarks.\npdfjs-editor-alt-text-cancel-button = Cancel\npdfjs-editor-alt-text-save-button = Save\npdfjs-editor-alt-text-decorative-tooltip = Marked as decorative\npdfjs-editor-alt-text-textarea =\n    .placeholder = For example, \u201CA young man sits down at a table to eat a meal\u201D\npdfjs-editor-resizer-top-left =\n    .aria-label = Top left corner \u2014 resize\npdfjs-editor-resizer-top-middle =\n    .aria-label = Top middle \u2014 resize\npdfjs-editor-resizer-top-right =\n    .aria-label = Top right corner \u2014 resize\npdfjs-editor-resizer-middle-right =\n    .aria-label = Middle right \u2014 resize\npdfjs-editor-resizer-bottom-right =\n    .aria-label = Bottom right corner \u2014 resize\npdfjs-editor-resizer-bottom-middle =\n    .aria-label = Bottom middle \u2014 resize\npdfjs-editor-resizer-bottom-left =\n    .aria-label = Bottom left corner \u2014 resize\npdfjs-editor-resizer-middle-left =\n    .aria-label = Middle left \u2014 resize\npdfjs-editor-highlight-colorpicker-label = Highlight color\npdfjs-editor-colorpicker-button =\n    .title = Change color\npdfjs-editor-colorpicker-dropdown =\n    .aria-label = Color choices\npdfjs-editor-colorpicker-yellow =\n    .title = Yellow\npdfjs-editor-colorpicker-green =\n    .title = Green\npdfjs-editor-colorpicker-blue =\n    .title = Blue\npdfjs-editor-colorpicker-pink =\n    .title = Pink\npdfjs-editor-colorpicker-red =\n    .title = Red\npdfjs-editor-highlight-show-all-button-label = Show all\npdfjs-editor-highlight-show-all-button =\n    .title = Show all\npdfjs-editor-new-alt-text-dialog-edit-label = Edit alt text (image description)\npdfjs-editor-new-alt-text-dialog-add-label = Add alt text (image description)\npdfjs-editor-new-alt-text-textarea =\n    .placeholder = Write your description here\u2026\npdfjs-editor-new-alt-text-description = Short description for people who can\u2019t see the image or when the image doesn\u2019t load.\npdfjs-editor-new-alt-text-disclaimer1 = This alt text was created automatically and may be inaccurate.\npdfjs-editor-new-alt-text-disclaimer-learn-more-url = Learn more\npdfjs-editor-new-alt-text-create-automatically-button-label = Create alt text automatically\npdfjs-editor-new-alt-text-not-now-button = Not now\npdfjs-editor-new-alt-text-error-title = Couldn\u2019t create alt text automatically\npdfjs-editor-new-alt-text-error-description = Please write your own alt text or try again later.\npdfjs-editor-new-alt-text-error-close-button = Close\npdfjs-editor-new-alt-text-ai-model-downloading-progress = Downloading alt text AI model ({ $downloadedSize } of { $totalSize } MB)\n    .aria-valuetext = Downloading alt text AI model ({ $downloadedSize } of { $totalSize } MB)\npdfjs-editor-new-alt-text-added-button =\n    .aria-label = Alt text added\npdfjs-editor-new-alt-text-added-button-label = Alt text added\npdfjs-editor-new-alt-text-missing-button =\n    .aria-label = Missing alt text\npdfjs-editor-new-alt-text-missing-button-label = Missing alt text\npdfjs-editor-new-alt-text-to-review-button =\n    .aria-label = Review alt text\npdfjs-editor-new-alt-text-to-review-button-label = Review alt text\npdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Created automatically: { $generatedAltText }\npdfjs-image-alt-text-settings-button =\n    .title = Image alt text settings\npdfjs-image-alt-text-settings-button-label = Image alt text settings\npdfjs-editor-alt-text-settings-dialog-label = Image alt text settings\npdfjs-editor-alt-text-settings-automatic-title = Automatic alt text\npdfjs-editor-alt-text-settings-create-model-button-label = Create alt text automatically\npdfjs-editor-alt-text-settings-create-model-description = Suggests descriptions to help people who can\u2019t see the image or when the image doesn\u2019t load.\npdfjs-editor-alt-text-settings-download-model-label = Alt text AI model ({ $totalSize } MB)\npdfjs-editor-alt-text-settings-ai-model-description = Runs locally on your device so your data stays private. Required for automatic alt text.\npdfjs-editor-alt-text-settings-delete-model-button = Delete\npdfjs-editor-alt-text-settings-download-model-button = Download\npdfjs-editor-alt-text-settings-downloading-model-button = Downloading\u2026\npdfjs-editor-alt-text-settings-editor-title = Alt text editor\npdfjs-editor-alt-text-settings-show-dialog-button-label = Show alt text editor right away when adding an image\npdfjs-editor-alt-text-settings-show-dialog-description = Helps you make sure all your images have alt text.\npdfjs-editor-alt-text-settings-close-button = Close\npdfjs-editor-undo-bar-message-highlight = Highlight removed\npdfjs-editor-undo-bar-message-freetext = Text removed\npdfjs-editor-undo-bar-message-ink = Drawing removed\npdfjs-editor-undo-bar-message-stamp = Image removed\npdfjs-editor-undo-bar-message-multiple =\n    { $count ->\n        [one] { $count } annotation removed\n       *[other] { $count } annotations removed\n    }\npdfjs-editor-undo-bar-undo-button =\n    .title = Undo\npdfjs-editor-undo-bar-undo-button-label = Undo\npdfjs-editor-undo-bar-close-button =\n    .title = Close\npdfjs-editor-undo-bar-close-button-label = Close"
    return createBundle(lang, text)
  }
}

;// ./web/generic_scripting.js

async function docProperties (pdfDocument) {
  const url = "",
    baseUrl = url.split("#", 1)[0]
  let {
    info,
    metadata,
    contentDispositionFilename,
    contentLength
  } = await pdfDocument.getMetadata()
  if (!contentLength) {
    const {
      length
    } = await pdfDocument.getDownloadInfo()
    contentLength = length
  }
  return {
    ...info,
    baseURL: baseUrl,
    filesize: contentLength,
    filename: contentDispositionFilename || getPdfFilenameFromUrl(url),
    metadata: metadata?.getRaw(),
    authors: metadata?.get("dc:creator"),
    numPages: pdfDocument.numPages,
    URL: url
  }
}
class GenericScripting {
  constructor(sandboxBundleSrc) {
    this._ready = new Promise((resolve, reject) => {
      const sandbox = import(/*webpackIgnore: true*/sandboxBundleSrc)
      sandbox.then(pdfjsSandbox => {
        resolve(pdfjsSandbox.QuickJSSandbox())
      }).catch(reject)
    })
  }
  async createSandbox (data) {
    const sandbox = await this._ready
    sandbox.create(data)
  }
  async dispatchEventInSandbox (event) {
    const sandbox = await this._ready
    setTimeout(() => sandbox.dispatchEvent(event), 0)
  }
  async destroySandbox () {
    const sandbox = await this._ready
    sandbox.nukeSandbox()
  }
}

;// ./web/genericcom.js





function initCom (app) { }
class Preferences extends BasePreferences {
  async _writeToStorage (prefObj) {
    localStorage.setItem("pdfjs.preferences", JSON.stringify(prefObj))
  }
  async _readFromStorage (prefObj) {
    return {
      prefs: JSON.parse(localStorage.getItem("pdfjs.preferences"))
    }
  }
}
class ExternalServices extends BaseExternalServices {
  async createL10n () {
    return new genericl10n_GenericL10n(AppOptions.get("localeProperties")?.lang)
  }
  createScripting () {
    return new GenericScripting(AppOptions.get("sandboxBundleSrc"))
  }
}
class MLManager {
  async isEnabledFor (_name) {
    return false
  }
  async deleteModel (_service) {
    return null
  }
  isReady (_name) {
    return false
  }
  guess (_data) { }
  toggleService (_name, _enabled) { }
  static getFakeMLManager (options) {
    return new FakeMLManager(options)
  }
}
class FakeMLManager {
  eventBus = null;
  hasProgress = false;
  constructor({
    enableGuessAltText,
    enableAltTextModelDownload
  }) {
    this.enableGuessAltText = enableGuessAltText
    this.enableAltTextModelDownload = enableAltTextModelDownload
  }
  setEventBus (eventBus, abortSignal) {
    this.eventBus = eventBus
  }
  async isEnabledFor (_name) {
    return this.enableGuessAltText
  }
  async deleteModel (_name) {
    this.enableAltTextModelDownload = false
    return null
  }
  async loadModel (_name) { }
  async downloadModel (_name) {
    this.hasProgress = true
    const {
      promise,
      resolve
    } = Promise.withResolvers()
    const total = 1e8
    const end = 1.5 * total
    const increment = 5e6
    let loaded = 0
    const id = setInterval(() => {
      loaded += increment
      if (loaded <= end) {
        this.eventBus.dispatch("loadaiengineprogress", {
          source: this,
          detail: {
            total,
            totalLoaded: loaded,
            finished: loaded + increment >= end
          }
        })
        return
      }
      clearInterval(id)
      this.hasProgress = false
      this.enableAltTextModelDownload = true
      resolve(true)
    }, 900)
    return promise
  }
  isReady (_name) {
    return this.enableAltTextModelDownload
  }
  guess ({
    request: {
      data
    }
  }) {
    return new Promise(resolve => {
      setTimeout(() => {
        resolve(data ? {
          output: "Fake alt text."
        } : {
          error: true
        })
      }, 3000)
    })
  }
  toggleService (_name, enabled) {
    this.enableGuessAltText = enabled
  }
}

;// ./web/new_alt_text_manager.js

class NewAltTextManager {
  #boundCancel = this.#cancel.bind(this);
  #createAutomaticallyButton
  #currentEditor = null;
  #cancelButton
  #descriptionContainer
  #dialog
  #disclaimer
  #downloadModel
  #downloadModelDescription
  #eventBus
  #firstTime = false;
  #guessedAltText
  #hasAI = null;
  #isEditing = null;
  #imagePreview
  #imageData
  #isAILoading = false;
  #wasAILoading = false;
  #learnMore
  #notNowButton
  #overlayManager
  #textarea
  #title
  #uiManager
  #previousAltText = null;
  constructor({
    descriptionContainer,
    dialog,
    imagePreview,
    cancelButton,
    disclaimer,
    notNowButton,
    saveButton,
    textarea,
    learnMore,
    errorCloseButton,
    createAutomaticallyButton,
    downloadModel,
    downloadModelDescription,
    title
  }, overlayManager, eventBus) {
    this.#cancelButton = cancelButton
    this.#createAutomaticallyButton = createAutomaticallyButton
    this.#descriptionContainer = descriptionContainer
    this.#dialog = dialog
    this.#disclaimer = disclaimer
    this.#notNowButton = notNowButton
    this.#imagePreview = imagePreview
    this.#textarea = textarea
    this.#learnMore = learnMore
    this.#title = title
    this.#downloadModel = downloadModel
    this.#downloadModelDescription = downloadModelDescription
    this.#overlayManager = overlayManager
    this.#eventBus = eventBus
    dialog.addEventListener("close", this.#close.bind(this))
    dialog.addEventListener("contextmenu", event => {
      if (event.target !== this.#textarea) {
        event.preventDefault()
      }
    })
    cancelButton.addEventListener("click", this.#boundCancel)
    notNowButton.addEventListener("click", this.#boundCancel)
    saveButton.addEventListener("click", this.#save.bind(this))
    errorCloseButton.addEventListener("click", () => {
      this.#toggleError(false)
    })
    createAutomaticallyButton.addEventListener("click", async () => {
      const checked = createAutomaticallyButton.getAttribute("aria-pressed") !== "true"
      this.#currentEditor._reportTelemetry({
        action: "pdfjs.image.alt_text.ai_generation_check",
        data: {
          status: checked
        }
      })
      if (this.#uiManager) {
        this.#uiManager.setPreference("enableGuessAltText", checked)
        await this.#uiManager.mlManager.toggleService("altText", checked)
      }
      this.#toggleGuessAltText(checked, false)
    })
    textarea.addEventListener("focus", () => {
      this.#wasAILoading = this.#isAILoading
      this.#toggleLoading(false)
      this.#toggleTitleAndDisclaimer()
    })
    textarea.addEventListener("blur", () => {
      if (!textarea.value) {
        this.#toggleLoading(this.#wasAILoading)
      }
      this.#toggleTitleAndDisclaimer()
    })
    textarea.addEventListener("input", () => {
      this.#toggleTitleAndDisclaimer()
    })
    eventBus._on("enableguessalttext", ({
      value
    }) => {
      this.#toggleGuessAltText(value, false)
    })
    this.#overlayManager.register(dialog)
    this.#learnMore.addEventListener("click", () => {
      this.#currentEditor._reportTelemetry({
        action: "pdfjs.image.alt_text.info",
        data: {
          topic: "alt_text"
        }
      })
    })
  }
  #toggleLoading (value) {
    if (!this.#uiManager || this.#isAILoading === value) {
      return
    }
    this.#isAILoading = value
    this.#descriptionContainer.classList.toggle("loading", value)
  }
  #toggleError (value) {
    if (!this.#uiManager) {
      return
    }
    this.#dialog.classList.toggle("error", value)
  }
  async #toggleGuessAltText (value, isInitial = false) {
    if (!this.#uiManager) {
      return
    }
    this.#dialog.classList.toggle("aiDisabled", !value)
    this.#createAutomaticallyButton.setAttribute("aria-pressed", value)
    if (value) {
      const {
        altTextLearnMoreUrl
      } = this.#uiManager.mlManager
      if (altTextLearnMoreUrl) {
        this.#learnMore.href = altTextLearnMoreUrl
      }
      this.#mlGuessAltText(isInitial)
    } else {
      this.#toggleLoading(false)
      this.#isAILoading = false
      this.#toggleTitleAndDisclaimer()
    }
  }
  #toggleNotNow () {
    this.#notNowButton.classList.toggle("hidden", !this.#firstTime)
    this.#cancelButton.classList.toggle("hidden", this.#firstTime)
  }
  #toggleAI (value) {
    if (!this.#uiManager || this.#hasAI === value) {
      return
    }
    this.#hasAI = value
    this.#dialog.classList.toggle("noAi", !value)
    this.#toggleTitleAndDisclaimer()
  }
  #toggleTitleAndDisclaimer () {
    const visible = this.#isAILoading || this.#guessedAltText && this.#guessedAltText === this.#textarea.value
    this.#disclaimer.hidden = !visible
    const isEditing = this.#isAILoading || !!this.#textarea.value
    if (this.#isEditing === isEditing) {
      return
    }
    this.#isEditing = isEditing
    this.#title.setAttribute("data-l10n-id", isEditing ? "pdfjs-editor-new-alt-text-dialog-edit-label" : "pdfjs-editor-new-alt-text-dialog-add-label")
  }
  async #mlGuessAltText (isInitial) {
    if (this.#isAILoading) {
      return
    }
    if (this.#textarea.value) {
      return
    }
    if (isInitial && this.#previousAltText !== null) {
      return
    }
    this.#guessedAltText = this.#currentEditor.guessedAltText
    if (this.#previousAltText === null && this.#guessedAltText) {
      this.#addAltText(this.#guessedAltText)
      return
    }
    this.#toggleLoading(true)
    this.#toggleTitleAndDisclaimer()
    let hasError = false
    try {
      const altText = await this.#currentEditor.mlGuessAltText(this.#imageData, false)
      if (altText) {
        this.#guessedAltText = altText
        this.#wasAILoading = this.#isAILoading
        if (this.#isAILoading) {
          this.#addAltText(altText)
        }
      }
    } catch (e) {
      console.error(e)
      hasError = true
    }
    this.#toggleLoading(false)
    this.#toggleTitleAndDisclaimer()
    if (hasError && this.#uiManager) {
      this.#toggleError(true)
    }
  }
  #addAltText (altText) {
    if (!this.#uiManager || this.#textarea.value) {
      return
    }
    this.#textarea.value = altText
    this.#toggleTitleAndDisclaimer()
  }
  #setProgress () {
    this.#downloadModel.classList.toggle("hidden", false)
    const callback = async ({
      detail: {
        finished,
        total,
        totalLoaded
      }
    }) => {
      const ONE_MEGA_BYTES = 1e6
      totalLoaded = Math.min(0.99 * total, totalLoaded)
      const totalSize = this.#downloadModelDescription.ariaValueMax = Math.round(total / ONE_MEGA_BYTES)
      const downloadedSize = this.#downloadModelDescription.ariaValueNow = Math.round(totalLoaded / ONE_MEGA_BYTES)
      this.#downloadModelDescription.setAttribute("data-l10n-args", JSON.stringify({
        totalSize,
        downloadedSize
      }))
      if (!finished) {
        return
      }
      this.#eventBus._off("loadaiengineprogress", callback)
      this.#downloadModel.classList.toggle("hidden", true)
      this.#toggleAI(true)
      if (!this.#uiManager) {
        return
      }
      const {
        mlManager
      } = this.#uiManager
      mlManager.toggleService("altText", true)
      this.#toggleGuessAltText(await mlManager.isEnabledFor("altText"), true)
    }
    this.#eventBus._on("loadaiengineprogress", callback)
  }
  async editAltText (uiManager, editor, firstTime) {
    if (this.#currentEditor || !editor) {
      return
    }
    if (firstTime && editor.hasAltTextData()) {
      editor.altTextFinish()
      return
    }
    this.#firstTime = firstTime
    let {
      mlManager
    } = uiManager
    let hasAI = !!mlManager
    this.#toggleTitleAndDisclaimer()
    if (mlManager && !mlManager.isReady("altText")) {
      hasAI = false
      if (mlManager.hasProgress) {
        this.#setProgress()
      } else {
        mlManager = null
      }
    } else {
      this.#downloadModel.classList.toggle("hidden", true)
    }
    const isAltTextEnabledPromise = mlManager?.isEnabledFor("altText")
    this.#currentEditor = editor
    this.#uiManager = uiManager
    this.#uiManager.removeEditListeners();
    ({
      altText: this.#previousAltText
    } = editor.altTextData)
    this.#textarea.value = this.#previousAltText ?? ""
    const AI_MAX_IMAGE_DIMENSION = 224
    const MAX_PREVIEW_DIMENSION = 180
    let canvas, width, height
    if (mlManager) {
      ({
        canvas,
        width,
        height,
        imageData: this.#imageData
      } = editor.copyCanvas(AI_MAX_IMAGE_DIMENSION, MAX_PREVIEW_DIMENSION, true))
      if (hasAI) {
        this.#toggleGuessAltText(await isAltTextEnabledPromise, true)
      }
    } else {
      ({
        canvas,
        width,
        height
      } = editor.copyCanvas(AI_MAX_IMAGE_DIMENSION, MAX_PREVIEW_DIMENSION, false))
    }
    canvas.setAttribute("role", "presentation")
    const {
      style
    } = canvas
    style.width = `${width}px`
    style.height = `${height}px`
    this.#imagePreview.append(canvas)
    this.#toggleNotNow()
    this.#toggleAI(hasAI)
    this.#toggleError(false)
    try {
      await this.#overlayManager.open(this.#dialog)
    } catch (ex) {
      this.#close()
      throw ex
    }
  }
  #cancel () {
    this.#currentEditor.altTextData = {
      cancel: true
    }
    const altText = this.#textarea.value.trim()
    this.#currentEditor._reportTelemetry({
      action: "pdfjs.image.alt_text.dismiss",
      data: {
        alt_text_type: altText ? "present" : "empty",
        flow: this.#firstTime ? "image_add" : "alt_text_edit"
      }
    })
    this.#currentEditor._reportTelemetry({
      action: "pdfjs.image.image_added",
      data: {
        alt_text_modal: true,
        alt_text_type: "skipped"
      }
    })
    this.#finish()
  }
  #finish () {
    if (this.#overlayManager.active === this.#dialog) {
      this.#overlayManager.close(this.#dialog)
    }
  }
  #close () {
    const canvas = this.#imagePreview.firstChild
    canvas.remove()
    canvas.width = canvas.height = 0
    this.#imageData = null
    this.#toggleLoading(false)
    this.#uiManager?.addEditListeners()
    this.#currentEditor.altTextFinish()
    this.#uiManager?.setSelected(this.#currentEditor)
    this.#currentEditor = null
    this.#uiManager = null
  }
  #extractWords (text) {
    return new Set(text.toLowerCase().split(/[^\p{L}\p{N}]+/gu).filter(x => !!x))
  }
  #save () {
    const altText = this.#textarea.value.trim()
    this.#currentEditor.altTextData = {
      altText,
      decorative: false
    }
    this.#currentEditor.altTextData.guessedAltText = this.#guessedAltText
    if (this.#guessedAltText && this.#guessedAltText !== altText) {
      const guessedWords = this.#extractWords(this.#guessedAltText)
      const words = this.#extractWords(altText)
      this.#currentEditor._reportTelemetry({
        action: "pdfjs.image.alt_text.user_edit",
        data: {
          total_words: guessedWords.size,
          words_removed: guessedWords.difference(words).size,
          words_added: words.difference(guessedWords).size
        }
      })
    }
    this.#currentEditor._reportTelemetry({
      action: "pdfjs.image.image_added",
      data: {
        alt_text_modal: true,
        alt_text_type: altText ? "present" : "empty"
      }
    })
    this.#currentEditor._reportTelemetry({
      action: "pdfjs.image.alt_text.save",
      data: {
        alt_text_type: altText ? "present" : "empty",
        flow: this.#firstTime ? "image_add" : "alt_text_edit"
      }
    })
    this.#finish()
  }
  destroy () {
    this.#uiManager = null
    this.#finish()
  }
}
class ImageAltTextSettings {
  #aiModelSettings
  #createModelButton
  #downloadModelButton
  #dialog
  #eventBus
  #mlManager
  #overlayManager
  #showAltTextDialogButton
  constructor({
    dialog,
    createModelButton,
    aiModelSettings,
    learnMore,
    closeButton,
    deleteModelButton,
    downloadModelButton,
    showAltTextDialogButton
  }, overlayManager, eventBus, mlManager) {
    this.#dialog = dialog
    this.#aiModelSettings = aiModelSettings
    this.#createModelButton = createModelButton
    this.#downloadModelButton = downloadModelButton
    this.#showAltTextDialogButton = showAltTextDialogButton
    this.#overlayManager = overlayManager
    this.#eventBus = eventBus
    this.#mlManager = mlManager
    const {
      altTextLearnMoreUrl
    } = mlManager
    if (altTextLearnMoreUrl) {
      learnMore.href = altTextLearnMoreUrl
    }
    dialog.addEventListener("contextmenu", noContextMenu)
    createModelButton.addEventListener("click", async e => {
      const checked = this.#togglePref("enableGuessAltText", e)
      await mlManager.toggleService("altText", checked)
      this.#reportTelemetry({
        type: "stamp",
        action: "pdfjs.image.alt_text.settings_ai_generation_check",
        data: {
          status: checked
        }
      })
    })
    showAltTextDialogButton.addEventListener("click", e => {
      const checked = this.#togglePref("enableNewAltTextWhenAddingImage", e)
      this.#reportTelemetry({
        type: "stamp",
        action: "pdfjs.image.alt_text.settings_edit_alt_text_check",
        data: {
          status: checked
        }
      })
    })
    deleteModelButton.addEventListener("click", this.#delete.bind(this, true))
    downloadModelButton.addEventListener("click", this.#download.bind(this, true))
    closeButton.addEventListener("click", this.#finish.bind(this))
    learnMore.addEventListener("click", () => {
      this.#reportTelemetry({
        type: "stamp",
        action: "pdfjs.image.alt_text.info",
        data: {
          topic: "ai_generation"
        }
      })
    })
    eventBus._on("enablealttextmodeldownload", ({
      value
    }) => {
      if (value) {
        this.#download(false)
      } else {
        this.#delete(false)
      }
    })
    this.#overlayManager.register(dialog)
  }
  #reportTelemetry (data) {
    this.#eventBus.dispatch("reporttelemetry", {
      source: this,
      details: {
        type: "editing",
        data
      }
    })
  }
  async #download (isFromUI = false) {
    if (isFromUI) {
      this.#downloadModelButton.disabled = true
      const span = this.#downloadModelButton.firstChild
      span.setAttribute("data-l10n-id", "pdfjs-editor-alt-text-settings-downloading-model-button")
      await this.#mlManager.downloadModel("altText")
      span.setAttribute("data-l10n-id", "pdfjs-editor-alt-text-settings-download-model-button")
      this.#createModelButton.disabled = false
      this.#setPref("enableGuessAltText", true)
      this.#mlManager.toggleService("altText", true)
      this.#setPref("enableAltTextModelDownload", true)
      this.#downloadModelButton.disabled = false
    }
    this.#aiModelSettings.classList.toggle("download", false)
    this.#createModelButton.setAttribute("aria-pressed", true)
  }
  async #delete (isFromUI = false) {
    if (isFromUI) {
      await this.#mlManager.deleteModel("altText")
      this.#setPref("enableGuessAltText", false)
      this.#setPref("enableAltTextModelDownload", false)
    }
    this.#aiModelSettings.classList.toggle("download", true)
    this.#createModelButton.disabled = true
    this.#createModelButton.setAttribute("aria-pressed", false)
  }
  async open ({
    enableGuessAltText,
    enableNewAltTextWhenAddingImage
  }) {
    const {
      enableAltTextModelDownload
    } = this.#mlManager
    this.#createModelButton.disabled = !enableAltTextModelDownload
    this.#createModelButton.setAttribute("aria-pressed", enableAltTextModelDownload && enableGuessAltText)
    this.#showAltTextDialogButton.setAttribute("aria-pressed", enableNewAltTextWhenAddingImage)
    this.#aiModelSettings.classList.toggle("download", !enableAltTextModelDownload)
    await this.#overlayManager.open(this.#dialog)
    this.#reportTelemetry({
      type: "stamp",
      action: "pdfjs.image.alt_text.settings_displayed"
    })
  }
  #togglePref (name, {
    target
  }) {
    const checked = target.getAttribute("aria-pressed") !== "true"
    this.#setPref(name, checked)
    target.setAttribute("aria-pressed", checked)
    return checked
  }
  #setPref (name, value) {
    this.#eventBus.dispatch("setpreference", {
      source: this,
      name,
      value
    })
  }
  #finish () {
    if (this.#overlayManager.active === this.#dialog) {
      this.#overlayManager.close(this.#dialog)
    }
  }
}

;// ./web/alt_text_manager.js

class AltTextManager {
  #clickAC = null;
  #currentEditor = null;
  #cancelButton
  #dialog
  #eventBus
  #hasUsedPointer = false;
  #optionDescription
  #optionDecorative
  #overlayManager
  #saveButton
  #textarea
  #uiManager
  #previousAltText = null;
  #resizeAC = null;
  #svgElement = null;
  #rectElement = null;
  #container
  #telemetryData = null;
  constructor({
    dialog,
    optionDescription,
    optionDecorative,
    textarea,
    cancelButton,
    saveButton
  }, container, overlayManager, eventBus) {
    this.#dialog = dialog
    this.#optionDescription = optionDescription
    this.#optionDecorative = optionDecorative
    this.#textarea = textarea
    this.#cancelButton = cancelButton
    this.#saveButton = saveButton
    this.#overlayManager = overlayManager
    this.#eventBus = eventBus
    this.#container = container
    const onUpdateUIState = this.#updateUIState.bind(this)
    dialog.addEventListener("close", this.#close.bind(this))
    dialog.addEventListener("contextmenu", event => {
      if (event.target !== this.#textarea) {
        event.preventDefault()
      }
    })
    cancelButton.addEventListener("click", this.#finish.bind(this))
    saveButton.addEventListener("click", this.#save.bind(this))
    optionDescription.addEventListener("change", onUpdateUIState)
    optionDecorative.addEventListener("change", onUpdateUIState)
    this.#overlayManager.register(dialog)
  }
  #createSVGElement () {
    if (this.#svgElement) {
      return
    }
    const svgFactory = new DOMSVGFactory()
    const svg = this.#svgElement = svgFactory.createElement("svg")
    svg.setAttribute("width", "0")
    svg.setAttribute("height", "0")
    const defs = svgFactory.createElement("defs")
    svg.append(defs)
    const mask = svgFactory.createElement("mask")
    defs.append(mask)
    mask.setAttribute("id", "alttext-manager-mask")
    mask.setAttribute("maskContentUnits", "objectBoundingBox")
    let rect = svgFactory.createElement("rect")
    mask.append(rect)
    rect.setAttribute("fill", "white")
    rect.setAttribute("width", "1")
    rect.setAttribute("height", "1")
    rect.setAttribute("x", "0")
    rect.setAttribute("y", "0")
    rect = this.#rectElement = svgFactory.createElement("rect")
    mask.append(rect)
    rect.setAttribute("fill", "black")
    this.#dialog.append(svg)
  }
  async editAltText (uiManager, editor) {
    if (this.#currentEditor || !editor) {
      return
    }
    this.#createSVGElement()
    this.#hasUsedPointer = false
    this.#clickAC = new AbortController()
    const clickOpts = {
      signal: this.#clickAC.signal
    },
      onClick = this.#onClick.bind(this)
    for (const element of [this.#optionDescription, this.#optionDecorative, this.#textarea, this.#saveButton, this.#cancelButton]) {
      element.addEventListener("click", onClick, clickOpts)
    }
    const {
      altText,
      decorative
    } = editor.altTextData
    if (decorative === true) {
      this.#optionDecorative.checked = true
      this.#optionDescription.checked = false
    } else {
      this.#optionDecorative.checked = false
      this.#optionDescription.checked = true
    }
    this.#previousAltText = this.#textarea.value = altText?.trim() || ""
    this.#updateUIState()
    this.#currentEditor = editor
    this.#uiManager = uiManager
    this.#uiManager.removeEditListeners()
    this.#resizeAC = new AbortController()
    this.#eventBus._on("resize", this.#setPosition.bind(this), {
      signal: this.#resizeAC.signal
    })
    try {
      await this.#overlayManager.open(this.#dialog)
      this.#setPosition()
    } catch (ex) {
      this.#close()
      throw ex
    }
  }
  #setPosition () {
    if (!this.#currentEditor) {
      return
    }
    const dialog = this.#dialog
    const {
      style
    } = dialog
    const {
      x: containerX,
      y: containerY,
      width: containerW,
      height: containerH
    } = this.#container.getBoundingClientRect()
    const {
      innerWidth: windowW,
      innerHeight: windowH
    } = window
    const {
      width: dialogW,
      height: dialogH
    } = dialog.getBoundingClientRect()
    const {
      x,
      y,
      width,
      height
    } = this.#currentEditor.getClientDimensions()
    const MARGIN = 10
    const isLTR = this.#uiManager.direction === "ltr"
    const xs = Math.max(x, containerX)
    const xe = Math.min(x + width, containerX + containerW)
    const ys = Math.max(y, containerY)
    const ye = Math.min(y + height, containerY + containerH)
    this.#rectElement.setAttribute("width", `${(xe - xs) / windowW}`)
    this.#rectElement.setAttribute("height", `${(ye - ys) / windowH}`)
    this.#rectElement.setAttribute("x", `${xs / windowW}`)
    this.#rectElement.setAttribute("y", `${ys / windowH}`)
    let left = null
    let top = Math.max(y, 0)
    top += Math.min(windowH - (top + dialogH), 0)
    if (isLTR) {
      if (x + width + MARGIN + dialogW < windowW) {
        left = x + width + MARGIN
      } else if (x > dialogW + MARGIN) {
        left = x - dialogW - MARGIN
      }
    } else if (x > dialogW + MARGIN) {
      left = x - dialogW - MARGIN
    } else if (x + width + MARGIN + dialogW < windowW) {
      left = x + width + MARGIN
    }
    if (left === null) {
      top = null
      left = Math.max(x, 0)
      left += Math.min(windowW - (left + dialogW), 0)
      if (y > dialogH + MARGIN) {
        top = y - dialogH - MARGIN
      } else if (y + height + MARGIN + dialogH < windowH) {
        top = y + height + MARGIN
      }
    }
    if (top !== null) {
      dialog.classList.add("positioned")
      if (isLTR) {
        style.left = `${left}px`
      } else {
        style.right = `${windowW - left - dialogW}px`
      }
      style.top = `${top}px`
    } else {
      dialog.classList.remove("positioned")
      style.left = ""
      style.top = ""
    }
  }
  #finish () {
    if (this.#overlayManager.active === this.#dialog) {
      this.#overlayManager.close(this.#dialog)
    }
  }
  #close () {
    this.#currentEditor._reportTelemetry(this.#telemetryData || {
      action: "alt_text_cancel",
      alt_text_keyboard: !this.#hasUsedPointer
    })
    this.#telemetryData = null
    this.#removeOnClickListeners()
    this.#uiManager?.addEditListeners()
    this.#resizeAC?.abort()
    this.#resizeAC = null
    this.#currentEditor.altTextFinish()
    this.#currentEditor = null
    this.#uiManager = null
  }
  #updateUIState () {
    this.#textarea.disabled = this.#optionDecorative.checked
  }
  #save () {
    const altText = this.#textarea.value.trim()
    const decorative = this.#optionDecorative.checked
    this.#currentEditor.altTextData = {
      altText,
      decorative
    }
    this.#telemetryData = {
      action: "alt_text_save",
      alt_text_description: !!altText,
      alt_text_edit: !!this.#previousAltText && this.#previousAltText !== altText,
      alt_text_decorative: decorative,
      alt_text_keyboard: !this.#hasUsedPointer
    }
    this.#finish()
  }
  #onClick (evt) {
    if (evt.detail === 0) {
      return
    }
    this.#hasUsedPointer = true
    this.#removeOnClickListeners()
  }
  #removeOnClickListeners () {
    this.#clickAC?.abort()
    this.#clickAC = null
  }
  destroy () {
    this.#uiManager = null
    this.#finish()
    this.#svgElement?.remove()
    this.#svgElement = this.#rectElement = null
  }
}

;// ./web/annotation_editor_params.js

class AnnotationEditorParams {
  constructor(options, eventBus) {
    this.eventBus = eventBus
    this.#bindListeners(options)
  }
  #bindListeners ({
    editorFreeTextFontSize,
    editorFreeTextColor,
    editorInkColor,
    editorInkThickness,
    editorInkOpacity,
    editorStampAddImage,
    editorFreeHighlightThickness,
    editorHighlightShowAll
  }) {
    const dispatchEvent = (typeStr, value) => {
      this.eventBus.dispatch("switchannotationeditorparams", {
        source: this,
        type: AnnotationEditorParamsType[typeStr],
        value
      })
    }
    editorFreeTextFontSize.addEventListener("input", function () {
      dispatchEvent("FREETEXT_SIZE", this.valueAsNumber)
    })
    editorFreeTextColor.addEventListener("input", function () {
      dispatchEvent("FREETEXT_COLOR", this.value)
    })
    editorInkColor.addEventListener("input", function () {
      dispatchEvent("INK_COLOR", this.value)
    })
    editorInkThickness.addEventListener("input", function () {
      dispatchEvent("INK_THICKNESS", this.valueAsNumber)
    })
    editorInkOpacity.addEventListener("input", function () {
      dispatchEvent("INK_OPACITY", this.valueAsNumber)
    })
    editorStampAddImage.addEventListener("click", () => {
      this.eventBus.dispatch("reporttelemetry", {
        source: this,
        details: {
          type: "editing",
          data: {
            action: "pdfjs.image.add_image_click"
          }
        }
      })
      dispatchEvent("CREATE")
    })
    editorFreeHighlightThickness.addEventListener("input", function () {
      dispatchEvent("HIGHLIGHT_THICKNESS", this.valueAsNumber)
    })
    editorHighlightShowAll.addEventListener("click", function () {
      const checked = this.getAttribute("aria-pressed") === "true"
      this.setAttribute("aria-pressed", !checked)
      dispatchEvent("HIGHLIGHT_SHOW_ALL", !checked)
    })
    this.eventBus._on("annotationeditorparamschanged", evt => {
      for (const [type, value] of evt.details) {
        switch (type) {
          case AnnotationEditorParamsType.FREETEXT_SIZE:
            editorFreeTextFontSize.value = value
            break
          case AnnotationEditorParamsType.FREETEXT_COLOR:
            editorFreeTextColor.value = value
            break
          case AnnotationEditorParamsType.INK_COLOR:
            editorInkColor.value = value
            break
          case AnnotationEditorParamsType.INK_THICKNESS:
            editorInkThickness.value = value
            break
          case AnnotationEditorParamsType.INK_OPACITY:
            editorInkOpacity.value = value
            break
          case AnnotationEditorParamsType.HIGHLIGHT_THICKNESS:
            editorFreeHighlightThickness.value = value
            break
          case AnnotationEditorParamsType.HIGHLIGHT_FREE:
            editorFreeHighlightThickness.disabled = !value
            break
          case AnnotationEditorParamsType.HIGHLIGHT_SHOW_ALL:
            editorHighlightShowAll.setAttribute("aria-pressed", value)
            break
        }
      }
    })
  }
}

;// ./web/caret_browsing.js
const PRECISION = 1e-1
class CaretBrowsingMode {
  #mainContainer
  #toolBarHeight = 0;
  #viewerContainer
  constructor(abortSignal, mainContainer, viewerContainer, toolbarContainer) {
    this.#mainContainer = mainContainer
    this.#viewerContainer = viewerContainer
    if (!toolbarContainer) {
      return
    }
    this.#toolBarHeight = toolbarContainer.getBoundingClientRect().height
    const toolbarObserver = new ResizeObserver(entries => {
      for (const entry of entries) {
        if (entry.target === toolbarContainer) {
          this.#toolBarHeight = Math.floor(entry.borderBoxSize[0].blockSize)
          break
        }
      }
    })
    toolbarObserver.observe(toolbarContainer)
    abortSignal.addEventListener("abort", () => toolbarObserver.disconnect(), {
      once: true
    })
  }
  #isOnSameLine (rect1, rect2) {
    const top1 = rect1.y
    const bot1 = rect1.bottom
    const mid1 = rect1.y + rect1.height / 2
    const top2 = rect2.y
    const bot2 = rect2.bottom
    const mid2 = rect2.y + rect2.height / 2
    return top1 <= mid2 && mid2 <= bot1 || top2 <= mid1 && mid1 <= bot2
  }
  #isUnderOver (rect, x, y, isUp) {
    const midY = rect.y + rect.height / 2
    return (isUp ? y >= midY : y <= midY) && rect.x - PRECISION <= x && x <= rect.right + PRECISION
  }
  #isVisible (rect) {
    return rect.top >= this.#toolBarHeight && rect.left >= 0 && rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && rect.right <= (window.innerWidth || document.documentElement.clientWidth)
  }
  #getCaretPosition (selection, isUp) {
    const {
      focusNode,
      focusOffset
    } = selection
    const range = document.createRange()
    range.setStart(focusNode, focusOffset)
    range.setEnd(focusNode, focusOffset)
    const rect = range.getBoundingClientRect()
    return [rect.x, isUp ? rect.top : rect.bottom]
  }
  static #caretPositionFromPoint (x, y) {
    if (!document.caretPositionFromPoint) {
      const {
        startContainer: offsetNode,
        startOffset: offset
      } = document.caretRangeFromPoint(x, y)
      return {
        offsetNode,
        offset
      }
    }
    return document.caretPositionFromPoint(x, y)
  }
  #setCaretPositionHelper (selection, caretX, select, element, rect) {
    rect ||= element.getBoundingClientRect()
    if (caretX <= rect.x + PRECISION) {
      if (select) {
        selection.extend(element.firstChild, 0)
      } else {
        selection.setPosition(element.firstChild, 0)
      }
      return
    }
    if (rect.right - PRECISION <= caretX) {
      const {
        lastChild
      } = element
      if (select) {
        selection.extend(lastChild, lastChild.length)
      } else {
        selection.setPosition(lastChild, lastChild.length)
      }
      return
    }
    const midY = rect.y + rect.height / 2
    let caretPosition = CaretBrowsingMode.#caretPositionFromPoint(caretX, midY)
    let parentElement = caretPosition.offsetNode?.parentElement
    if (parentElement && parentElement !== element) {
      const elementsAtPoint = document.elementsFromPoint(caretX, midY)
      const savedVisibilities = []
      for (const el of elementsAtPoint) {
        if (el === element) {
          break
        }
        const {
          style
        } = el
        savedVisibilities.push([el, style.visibility])
        style.visibility = "hidden"
      }
      caretPosition = CaretBrowsingMode.#caretPositionFromPoint(caretX, midY)
      parentElement = caretPosition.offsetNode?.parentElement
      for (const [el, visibility] of savedVisibilities) {
        el.style.visibility = visibility
      }
    }
    if (parentElement !== element) {
      if (select) {
        selection.extend(element.firstChild, 0)
      } else {
        selection.setPosition(element.firstChild, 0)
      }
      return
    }
    if (select) {
      selection.extend(caretPosition.offsetNode, caretPosition.offset)
    } else {
      selection.setPosition(caretPosition.offsetNode, caretPosition.offset)
    }
  }
  #setCaretPosition (select, selection, newLineElement, newLineElementRect, caretX) {
    if (this.#isVisible(newLineElementRect)) {
      this.#setCaretPositionHelper(selection, caretX, select, newLineElement, newLineElementRect)
      return
    }
    this.#mainContainer.addEventListener("scrollend", this.#setCaretPositionHelper.bind(this, selection, caretX, select, newLineElement, null), {
      once: true
    })
    newLineElement.scrollIntoView()
  }
  #getNodeOnNextPage (textLayer, isUp) {
    while (true) {
      const page = textLayer.closest(".page")
      const pageNumber = parseInt(page.getAttribute("data-page-number"))
      const nextPage = isUp ? pageNumber - 1 : pageNumber + 1
      textLayer = this.#viewerContainer.querySelector(`.page[data-page-number="${nextPage}"] .textLayer`)
      if (!textLayer) {
        return null
      }
      const walker = document.createTreeWalker(textLayer, NodeFilter.SHOW_TEXT)
      const node = isUp ? walker.lastChild() : walker.firstChild()
      if (node) {
        return node
      }
    }
  }
  moveCaret (isUp, select) {
    const selection = document.getSelection()
    if (selection.rangeCount === 0) {
      return
    }
    const {
      focusNode
    } = selection
    const focusElement = focusNode.nodeType !== Node.ELEMENT_NODE ? focusNode.parentElement : focusNode
    const root = focusElement.closest(".textLayer")
    if (!root) {
      return
    }
    const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT)
    walker.currentNode = focusNode
    const focusRect = focusElement.getBoundingClientRect()
    let newLineElement = null
    const nodeIterator = (isUp ? walker.previousSibling : walker.nextSibling).bind(walker)
    while (nodeIterator()) {
      const element = walker.currentNode.parentElement
      if (!this.#isOnSameLine(focusRect, element.getBoundingClientRect())) {
        newLineElement = element
        break
      }
    }
    if (!newLineElement) {
      const node = this.#getNodeOnNextPage(root, isUp)
      if (!node) {
        return
      }
      if (select) {
        const lastNode = (isUp ? walker.firstChild() : walker.lastChild()) || focusNode
        selection.extend(lastNode, isUp ? 0 : lastNode.length)
        const range = document.createRange()
        range.setStart(node, isUp ? node.length : 0)
        range.setEnd(node, isUp ? node.length : 0)
        selection.addRange(range)
        return
      }
      const [caretX] = this.#getCaretPosition(selection, isUp)
      const {
        parentElement
      } = node
      this.#setCaretPosition(select, selection, parentElement, parentElement.getBoundingClientRect(), caretX)
      return
    }
    const [caretX, caretY] = this.#getCaretPosition(selection, isUp)
    const newLineElementRect = newLineElement.getBoundingClientRect()
    if (this.#isUnderOver(newLineElementRect, caretX, caretY, isUp)) {
      this.#setCaretPosition(select, selection, newLineElement, newLineElementRect, caretX)
      return
    }
    while (nodeIterator()) {
      const element = walker.currentNode.parentElement
      const elementRect = element.getBoundingClientRect()
      if (!this.#isOnSameLine(newLineElementRect, elementRect)) {
        break
      }
      if (this.#isUnderOver(elementRect, caretX, caretY, isUp)) {
        this.#setCaretPosition(select, selection, element, elementRect, caretX)
        return
      }
    }
    this.#setCaretPosition(select, selection, newLineElement, newLineElementRect, caretX)
  }
}

;// ./web/download_manager.js

function download (blobUrl, filename) {
  const a = document.createElement("a")
  if (!a.click) {
    throw new Error('DownloadManager: "a.click()" is not supported.')
  }
  a.href = blobUrl
  a.target = "_parent"
  if ("download" in a) {
    a.download = filename
  }
  (document.body || document.documentElement).append(a)
  a.click()
  a.remove()
}
class DownloadManager {
  #openBlobUrls = new WeakMap();
  downloadData (data, filename, contentType) {
    const blobUrl = URL.createObjectURL(new Blob([data], {
      type: contentType
    }))
    download(blobUrl, filename)
  }
  openOrDownloadData (data, filename, dest = null) {
    const isPdfData = isPdfFile(filename)
    const contentType = isPdfData ? "application/pdf" : ""
    if (isPdfData) {
      let blobUrl = this.#openBlobUrls.get(data)
      if (!blobUrl) {
        blobUrl = URL.createObjectURL(new Blob([data], {
          type: contentType
        }))
        this.#openBlobUrls.set(data, blobUrl)
      }
      let viewerUrl
      viewerUrl = "?file=" + encodeURIComponent(blobUrl + "#" + filename)
      if (dest) {
        viewerUrl += `#${escape(dest)}`
      }
      try {
        window.open(viewerUrl)
        return true
      } catch (ex) {
        console.error("openOrDownloadData:", ex)
        URL.revokeObjectURL(blobUrl)
        this.#openBlobUrls.delete(data)
      }
    }
    this.downloadData(data, filename, contentType)
    return false
  }
  download (data, url, filename) {
    let blobUrl
    if (data) {
      blobUrl = URL.createObjectURL(new Blob([data], {
        type: "application/pdf"
      }))
    } else {
      if (!createValidAbsoluteUrl(url, "http://example.com")) {
        console.error(`download - not a valid URL: ${url}`)
        return
      }
      blobUrl = url + "#pdfjs.action=download"
    }
    download(blobUrl, filename)
  }
}

;// ./web/editor_undo_bar.js

class EditorUndoBar {
  #closeButton = null;
  #container
  #eventBus = null;
  #focusTimeout = null;
  #initController = null;
  isOpen = false;
  #message
  #showController = null;
  #undoButton
  static #l10nMessages = Object.freeze({
    highlight: "pdfjs-editor-undo-bar-message-highlight",
    freetext: "pdfjs-editor-undo-bar-message-freetext",
    stamp: "pdfjs-editor-undo-bar-message-stamp",
    ink: "pdfjs-editor-undo-bar-message-ink",
    _multiple: "pdfjs-editor-undo-bar-message-multiple"
  });
  constructor({
    container,
    message,
    undoButton,
    closeButton
  }, eventBus) {
    this.#container = container
    this.#message = message
    this.#undoButton = undoButton
    this.#closeButton = closeButton
    this.#eventBus = eventBus
  }
  destroy () {
    this.#initController?.abort()
    this.#initController = null
    this.hide()
  }
  show (undoAction, messageData) {
    if (!this.#initController) {
      this.#initController = new AbortController()
      const opts = {
        signal: this.#initController.signal
      }
      const boundHide = this.hide.bind(this)
      this.#container.addEventListener("contextmenu", noContextMenu, opts)
      this.#closeButton.addEventListener("click", boundHide, opts)
      this.#eventBus._on("beforeprint", boundHide, opts)
      this.#eventBus._on("download", boundHide, opts)
    }
    this.hide()
    if (typeof messageData === "string") {
      this.#message.setAttribute("data-l10n-id", EditorUndoBar.#l10nMessages[messageData])
    } else {
      this.#message.setAttribute("data-l10n-id", EditorUndoBar.#l10nMessages._multiple)
      this.#message.setAttribute("data-l10n-args", JSON.stringify({
        count: messageData
      }))
    }
    this.isOpen = true
    this.#container.hidden = false
    this.#showController = new AbortController()
    this.#undoButton.addEventListener("click", () => {
      undoAction()
      this.hide()
    }, {
      signal: this.#showController.signal
    })
    this.#focusTimeout = setTimeout(() => {
      this.#container.focus()
      this.#focusTimeout = null
    }, 100)
  }
  hide () {
    if (!this.isOpen) {
      return
    }
    this.isOpen = false
    this.#container.hidden = true
    this.#showController?.abort()
    this.#showController = null
    if (this.#focusTimeout) {
      clearTimeout(this.#focusTimeout)
      this.#focusTimeout = null
    }
  }
}

;// ./web/overlay_manager.js
class OverlayManager {
  #overlays = new WeakMap();
  #active = null;
  get active () {
    return this.#active
  }
  async register (dialog, canForceClose = false) {
    if (typeof dialog !== "object") {
      throw new Error("Not enough parameters.")
    } else if (this.#overlays.has(dialog)) {
      throw new Error("The overlay is already registered.")
    }
    this.#overlays.set(dialog, {
      canForceClose
    })
    dialog.addEventListener("cancel", evt => {
      this.#active = null
    })
  }
  async open (dialog) {
    if (!this.#overlays.has(dialog)) {
      throw new Error("The overlay does not exist.")
    } else if (this.#active) {
      if (this.#active === dialog) {
        throw new Error("The overlay is already active.")
      } else if (this.#overlays.get(dialog).canForceClose) {
        await this.close()
      } else {
        throw new Error("Another overlay is currently active.")
      }
    }
    this.#active = dialog
    dialog.showModal()
  }
  async close (dialog = this.#active) {
    if (!this.#overlays.has(dialog)) {
      throw new Error("The overlay does not exist.")
    } else if (!this.#active) {
      throw new Error("The overlay is currently not active.")
    } else if (this.#active !== dialog) {
      throw new Error("Another overlay is currently active.")
    }
    dialog.close()
    this.#active = null
  }
}

;// ./web/password_prompt.js

class PasswordPrompt {
  #activeCapability = null;
  #updateCallback = null;
  #reason = null;
  constructor(options, overlayManager, isViewerEmbedded = false) {
    this.dialog = options.dialog
    this.label = options.label
    this.input = options.input
    this.submitButton = options.submitButton
    this.cancelButton = options.cancelButton
    this.overlayManager = overlayManager
    this._isViewerEmbedded = isViewerEmbedded
    this.submitButton.addEventListener("click", this.#verify.bind(this))
    this.cancelButton.addEventListener("click", this.close.bind(this))
    this.input.addEventListener("keydown", e => {
      if (e.keyCode === 13) {
        this.#verify()
      }
    })
    this.overlayManager.register(this.dialog, true)
    this.dialog.addEventListener("close", this.#cancel.bind(this))
  }
  async open () {
    await this.#activeCapability?.promise
    this.#activeCapability = Promise.withResolvers()
    try {
      await this.overlayManager.open(this.dialog)
    } catch (ex) {
      this.#activeCapability.resolve()
      throw ex
    }
    const passwordIncorrect = this.#reason === PasswordResponses.INCORRECT_PASSWORD
    if (!this._isViewerEmbedded || passwordIncorrect) {
      this.input.focus()
    }
    this.label.setAttribute("data-l10n-id", passwordIncorrect ? "pdfjs-password-invalid" : "pdfjs-password-label")
  }
  async close () {
    if (this.overlayManager.active === this.dialog) {
      this.overlayManager.close(this.dialog)
    }
  }
  #verify () {
    const password = this.input.value
    if (password?.length > 0) {
      this.#invokeCallback(password)
    }
  }
  #cancel () {
    this.#invokeCallback(new Error("PasswordPrompt cancelled."))
    this.#activeCapability.resolve()
  }
  #invokeCallback (password) {
    if (!this.#updateCallback) {
      return
    }
    this.close()
    this.input.value = ""
    this.#updateCallback(password)
    this.#updateCallback = null
  }
  async setUpdateCallback (updateCallback, reason) {
    if (this.#activeCapability) {
      await this.#activeCapability.promise
    }
    this.#updateCallback = updateCallback
    this.#reason = reason
  }
}

;// ./web/base_tree_viewer.js

const TREEITEM_OFFSET_TOP = -100
const TREEITEM_SELECTED_CLASS = "selected"
class BaseTreeViewer {
  constructor(options) {
    this.container = options.container
    this.eventBus = options.eventBus
    this._l10n = options.l10n
    this.reset()
  }
  reset () {
    this._pdfDocument = null
    this._lastToggleIsShow = true
    this._currentTreeItem = null
    this.container.textContent = ""
    this.container.classList.remove("treeWithDeepNesting")
  }
  _dispatchEvent (count) {
    throw new Error("Not implemented: _dispatchEvent")
  }
  _bindLink (element, params) {
    throw new Error("Not implemented: _bindLink")
  }
  _normalizeTextContent (str) {
    return removeNullCharacters(str, true) || "\u2013"
  }
  _addToggleButton (div, hidden = false) {
    const toggler = document.createElement("div")
    toggler.className = "treeItemToggler"
    if (hidden) {
      toggler.classList.add("treeItemsHidden")
    }
    toggler.onclick = evt => {
      evt.stopPropagation()
      toggler.classList.toggle("treeItemsHidden")
      if (evt.shiftKey) {
        const shouldShowAll = !toggler.classList.contains("treeItemsHidden")
        this._toggleTreeItem(div, shouldShowAll)
      }
    }
    div.prepend(toggler)
  }
  _toggleTreeItem (root, show = false) {
    this._l10n.pause()
    this._lastToggleIsShow = show
    for (const toggler of root.querySelectorAll(".treeItemToggler")) {
      toggler.classList.toggle("treeItemsHidden", !show)
    }
    this._l10n.resume()
  }
  _toggleAllTreeItems () {
    this._toggleTreeItem(this.container, !this._lastToggleIsShow)
  }
  _finishRendering (fragment, count, hasAnyNesting = false) {
    if (hasAnyNesting) {
      this.container.classList.add("treeWithDeepNesting")
      this._lastToggleIsShow = !fragment.querySelector(".treeItemsHidden")
    }
    this._l10n.pause()
    this.container.append(fragment)
    this._l10n.resume()
    this._dispatchEvent(count)
  }
  render (params) {
    throw new Error("Not implemented: render")
  }
  _updateCurrentTreeItem (treeItem = null) {
    if (this._currentTreeItem) {
      this._currentTreeItem.classList.remove(TREEITEM_SELECTED_CLASS)
      this._currentTreeItem = null
    }
    if (treeItem) {
      treeItem.classList.add(TREEITEM_SELECTED_CLASS)
      this._currentTreeItem = treeItem
    }
  }
  _scrollToCurrentTreeItem (treeItem) {
    if (!treeItem) {
      return
    }
    this._l10n.pause()
    let currentNode = treeItem.parentNode
    while (currentNode && currentNode !== this.container) {
      if (currentNode.classList.contains("treeItem")) {
        const toggler = currentNode.firstElementChild
        toggler?.classList.remove("treeItemsHidden")
      }
      currentNode = currentNode.parentNode
    }
    this._l10n.resume()
    this._updateCurrentTreeItem(treeItem)
    this.container.scrollTo(treeItem.offsetLeft, treeItem.offsetTop + TREEITEM_OFFSET_TOP)
  }
}

;// ./web/pdf_attachment_viewer.js


class PDFAttachmentViewer extends BaseTreeViewer {
  constructor(options) {
    super(options)
    this.downloadManager = options.downloadManager
    this.eventBus._on("fileattachmentannotation", this.#appendAttachment.bind(this))
  }
  reset (keepRenderedCapability = false) {
    super.reset()
    this._attachments = null
    if (!keepRenderedCapability) {
      this._renderedCapability = Promise.withResolvers()
    }
    this._pendingDispatchEvent = false
  }
  async _dispatchEvent (attachmentsCount) {
    this._renderedCapability.resolve()
    if (attachmentsCount === 0 && !this._pendingDispatchEvent) {
      this._pendingDispatchEvent = true
      await waitOnEventOrTimeout({
        target: this.eventBus,
        name: "annotationlayerrendered",
        delay: 1000
      })
      if (!this._pendingDispatchEvent) {
        return
      }
    }
    this._pendingDispatchEvent = false
    this.eventBus.dispatch("attachmentsloaded", {
      source: this,
      attachmentsCount
    })
  }
  _bindLink (element, {
    content,
    description,
    filename
  }) {
    if (description) {
      element.title = description
    }
    element.onclick = () => {
      this.downloadManager.openOrDownloadData(content, filename)
      return false
    }
  }
  render ({
    attachments,
    keepRenderedCapability = false
  }) {
    if (this._attachments) {
      this.reset(keepRenderedCapability)
    }
    this._attachments = attachments || null
    if (!attachments) {
      this._dispatchEvent(0)
      return
    }
    const fragment = document.createDocumentFragment()
    let attachmentsCount = 0
    for (const name in attachments) {
      const item = attachments[name]
      const div = document.createElement("div")
      div.className = "treeItem"
      const element = document.createElement("a")
      this._bindLink(element, item)
      element.textContent = this._normalizeTextContent(item.filename)
      div.append(element)
      fragment.append(div)
      attachmentsCount++
    }
    this._finishRendering(fragment, attachmentsCount)
  }
  #appendAttachment (item) {
    const renderedPromise = this._renderedCapability.promise
    renderedPromise.then(() => {
      if (renderedPromise !== this._renderedCapability.promise) {
        return
      }
      const attachments = this._attachments || Object.create(null)
      for (const name in attachments) {
        if (item.filename === name) {
          return
        }
      }
      attachments[item.filename] = item
      this.render({
        attachments,
        keepRenderedCapability: true
      })
    })
  }
}

;// ./web/grab_to_pan.js

const CSS_CLASS_GRAB = "grab-to-pan-grab"
class GrabToPan {
  #activateAC = null;
  #mouseDownAC = null;
  #scrollAC = null;
  constructor({
    element
  }) {
    this.element = element
    this.document = element.ownerDocument
    const overlay = this.overlay = document.createElement("div")
    overlay.className = "grab-to-pan-grabbing"
  }
  activate () {
    if (!this.#activateAC) {
      this.#activateAC = new AbortController()
      this.element.addEventListener("mousedown", this.#onMouseDown.bind(this), {
        capture: true,
        signal: this.#activateAC.signal
      })
      this.element.classList.add(CSS_CLASS_GRAB)
    }
  }
  deactivate () {
    if (this.#activateAC) {
      this.#activateAC.abort()
      this.#activateAC = null
      this.#endPan()
      this.element.classList.remove(CSS_CLASS_GRAB)
    }
  }
  toggle () {
    if (this.#activateAC) {
      this.deactivate()
    } else {
      this.activate()
    }
  }
  ignoreTarget (node) {
    return node.matches("a[href], a[href] *, input, textarea, button, button *, select, option")
  }
  #onMouseDown (event) {
    if (event.button !== 0 || this.ignoreTarget(event.target)) {
      return
    }
    if (event.originalTarget) {
      try {
        event.originalTarget.tagName
      } catch {
        return
      }
    }
    this.scrollLeftStart = this.element.scrollLeft
    this.scrollTopStart = this.element.scrollTop
    this.clientXStart = event.clientX
    this.clientYStart = event.clientY
    this.#mouseDownAC = new AbortController()
    const boundEndPan = this.#endPan.bind(this),
      mouseOpts = {
        capture: true,
        signal: this.#mouseDownAC.signal
      }
    this.document.addEventListener("mousemove", this.#onMouseMove.bind(this), mouseOpts)
    this.document.addEventListener("mouseup", boundEndPan, mouseOpts)
    this.#scrollAC = new AbortController()
    this.element.addEventListener("scroll", boundEndPan, {
      capture: true,
      signal: this.#scrollAC.signal
    })
    stopEvent(event)
    const focusedElement = document.activeElement
    if (focusedElement && !focusedElement.contains(event.target)) {
      focusedElement.blur()
    }
  }
  #onMouseMove (event) {
    this.#scrollAC?.abort()
    this.#scrollAC = null
    if (!(event.buttons & 1)) {
      this.#endPan()
      return
    }
    const xDiff = event.clientX - this.clientXStart
    const yDiff = event.clientY - this.clientYStart
    this.element.scrollTo({
      top: this.scrollTopStart - yDiff,
      left: this.scrollLeftStart - xDiff,
      behavior: "instant"
    })
    if (!this.overlay.parentNode) {
      document.body.append(this.overlay)
    }
  }
  #endPan () {
    this.#mouseDownAC?.abort()
    this.#mouseDownAC = null
    this.#scrollAC?.abort()
    this.#scrollAC = null
    this.overlay.remove()
  }
}

;// ./web/pdf_cursor_tools.js



class PDFCursorTools {
  #active = CursorTool.SELECT;
  #prevActive = null;
  constructor({
    container,
    eventBus,
    cursorToolOnLoad = CursorTool.SELECT
  }) {
    this.container = container
    this.eventBus = eventBus
    this.#addEventListeners()
    Promise.resolve().then(() => {
      this.switchTool(cursorToolOnLoad)
    })
  }
  get activeTool () {
    return this.#active
  }
  switchTool (tool) {
    if (this.#prevActive !== null) {
      return
    }
    this.#switchTool(tool)
  }
  #switchTool (tool, disabled = false) {
    if (tool === this.#active) {
      if (this.#prevActive !== null) {
        this.eventBus.dispatch("cursortoolchanged", {
          source: this,
          tool,
          disabled
        })
      }
      return
    }
    const disableActiveTool = () => {
      switch (this.#active) {
        case CursorTool.SELECT:
          break
        case CursorTool.HAND:
          this._handTool.deactivate()
          break
        case CursorTool.ZOOM:
      }
    }
    switch (tool) {
      case CursorTool.SELECT:
        disableActiveTool()
        break
      case CursorTool.HAND:
        disableActiveTool()
        this._handTool.activate()
        break
      case CursorTool.ZOOM:
      default:
        console.error(`switchTool: "${tool}" is an unsupported value.`)
        return
    }
    this.#active = tool
    this.eventBus.dispatch("cursortoolchanged", {
      source: this,
      tool,
      disabled
    })
  }
  #addEventListeners () {
    this.eventBus._on("switchcursortool", evt => {
      if (!evt.reset) {
        this.switchTool(evt.tool)
      } else if (this.#prevActive !== null) {
        annotationEditorMode = AnnotationEditorType.NONE
        presentationModeState = PresentationModeState.NORMAL
        enableActive()
      }
    })
    let annotationEditorMode = AnnotationEditorType.NONE,
      presentationModeState = PresentationModeState.NORMAL
    const disableActive = () => {
      this.#prevActive ??= this.#active
      this.#switchTool(CursorTool.SELECT, true)
    }
    const enableActive = () => {
      if (this.#prevActive !== null && annotationEditorMode === AnnotationEditorType.NONE && presentationModeState === PresentationModeState.NORMAL) {
        this.#switchTool(this.#prevActive)
        this.#prevActive = null
      }
    }
    this.eventBus._on("annotationeditormodechanged", ({
      mode
    }) => {
      annotationEditorMode = mode
      if (mode === AnnotationEditorType.NONE) {
        enableActive()
      } else {
        disableActive()
      }
    })
    this.eventBus._on("presentationmodechanged", ({
      state
    }) => {
      presentationModeState = state
      if (state === PresentationModeState.NORMAL) {
        enableActive()
      } else if (state === PresentationModeState.FULLSCREEN) {
        disableActive()
      }
    })
  }
  get _handTool () {
    return shadow(this, "_handTool", new GrabToPan({
      element: this.container
    }))
  }
}

;// ./web/pdf_document_properties.js


const NON_METRIC_LOCALES = ["en-us", "en-lr", "my"]
const US_PAGE_NAMES = {
  "8.5x11": "pdfjs-document-properties-page-size-name-letter",
  "8.5x14": "pdfjs-document-properties-page-size-name-legal"
}
const METRIC_PAGE_NAMES = {
  "297x420": "pdfjs-document-properties-page-size-name-a-three",
  "210x297": "pdfjs-document-properties-page-size-name-a-four"
}
function getPageName (size, isPortrait, pageNames) {
  const width = isPortrait ? size.width : size.height
  const height = isPortrait ? size.height : size.width
  return pageNames[`${width}x${height}`]
}
class PDFDocumentProperties {
  #fieldData = null;
  constructor({
    dialog,
    fields,
    closeButton
  }, overlayManager, eventBus, l10n, fileNameLookup) {
    this.dialog = dialog
    this.fields = fields
    this.overlayManager = overlayManager
    this.l10n = l10n
    this._fileNameLookup = fileNameLookup
    this.#reset()
    closeButton.addEventListener("click", this.close.bind(this))
    this.overlayManager.register(this.dialog)
    eventBus._on("pagechanging", evt => {
      this._currentPageNumber = evt.pageNumber
    })
    eventBus._on("rotationchanging", evt => {
      this._pagesRotation = evt.pagesRotation
    })
  }
  async open () {
    await Promise.all([this.overlayManager.open(this.dialog), this._dataAvailableCapability.promise])
    const currentPageNumber = this._currentPageNumber
    const pagesRotation = this._pagesRotation
    if (this.#fieldData && currentPageNumber === this.#fieldData._currentPageNumber && pagesRotation === this.#fieldData._pagesRotation) {
      this.#updateUI()
      return
    }
    const [{
      info,
      contentLength
    }, pdfPage] = await Promise.all([this.pdfDocument.getMetadata(), this.pdfDocument.getPage(currentPageNumber)])
    const [fileName, fileSize, creationDate, modificationDate, pageSize, isLinearized] = await Promise.all([this._fileNameLookup(), this.#parseFileSize(contentLength), this.#parseDate(info.CreationDate), this.#parseDate(info.ModDate), this.#parsePageSize(getPageSizeInches(pdfPage), pagesRotation), this.#parseLinearization(info.IsLinearized)])
    this.#fieldData = Object.freeze({
      fileName,
      fileSize,
      title: info.Title,
      author: info.Author,
      subject: info.Subject,
      keywords: info.Keywords,
      creationDate,
      modificationDate,
      creator: info.Creator,
      producer: info.Producer,
      version: info.PDFFormatVersion,
      pageCount: this.pdfDocument.numPages,
      pageSize,
      linearized: isLinearized,
      _currentPageNumber: currentPageNumber,
      _pagesRotation: pagesRotation
    })
    this.#updateUI()
    const {
      length
    } = await this.pdfDocument.getDownloadInfo()
    if (contentLength === length) {
      return
    }
    const data = Object.assign(Object.create(null), this.#fieldData)
    data.fileSize = await this.#parseFileSize(length)
    this.#fieldData = Object.freeze(data)
    this.#updateUI()
  }
  async close () {
    this.overlayManager.close(this.dialog)
  }
  setDocument (pdfDocument) {
    if (this.pdfDocument) {
      this.#reset()
      this.#updateUI()
    }
    if (!pdfDocument) {
      return
    }
    this.pdfDocument = pdfDocument
    this._dataAvailableCapability.resolve()
  }
  #reset () {
    this.pdfDocument = null
    this.#fieldData = null
    this._dataAvailableCapability = Promise.withResolvers()
    this._currentPageNumber = 1
    this._pagesRotation = 0
  }
  #updateUI () {
    if (this.#fieldData && this.overlayManager.active !== this.dialog) {
      return
    }
    for (const id in this.fields) {
      const content = this.#fieldData?.[id]
      this.fields[id].textContent = content || content === 0 ? content : "-"
    }
  }
  async #parseFileSize (b = 0) {
    const kb = b / 1024,
      mb = kb / 1024
    return kb ? this.l10n.get(mb >= 1 ? "pdfjs-document-properties-size-mb" : "pdfjs-document-properties-size-kb", {
      mb,
      kb,
      b
    }) : undefined
  }
  async #parsePageSize (pageSizeInches, pagesRotation) {
    if (!pageSizeInches) {
      return undefined
    }
    if (pagesRotation % 180 !== 0) {
      pageSizeInches = {
        width: pageSizeInches.height,
        height: pageSizeInches.width
      }
    }
    const isPortrait = isPortraitOrientation(pageSizeInches),
      nonMetric = NON_METRIC_LOCALES.includes(this.l10n.getLanguage())
    let sizeInches = {
      width: Math.round(pageSizeInches.width * 100) / 100,
      height: Math.round(pageSizeInches.height * 100) / 100
    }
    let sizeMillimeters = {
      width: Math.round(pageSizeInches.width * 25.4 * 10) / 10,
      height: Math.round(pageSizeInches.height * 25.4 * 10) / 10
    }
    let nameId = getPageName(sizeInches, isPortrait, US_PAGE_NAMES) || getPageName(sizeMillimeters, isPortrait, METRIC_PAGE_NAMES)
    if (!nameId && !(Number.isInteger(sizeMillimeters.width) && Number.isInteger(sizeMillimeters.height))) {
      const exactMillimeters = {
        width: pageSizeInches.width * 25.4,
        height: pageSizeInches.height * 25.4
      }
      const intMillimeters = {
        width: Math.round(sizeMillimeters.width),
        height: Math.round(sizeMillimeters.height)
      }
      if (Math.abs(exactMillimeters.width - intMillimeters.width) < 0.1 && Math.abs(exactMillimeters.height - intMillimeters.height) < 0.1) {
        nameId = getPageName(intMillimeters, isPortrait, METRIC_PAGE_NAMES)
        if (nameId) {
          sizeInches = {
            width: Math.round(intMillimeters.width / 25.4 * 100) / 100,
            height: Math.round(intMillimeters.height / 25.4 * 100) / 100
          }
          sizeMillimeters = intMillimeters
        }
      }
    }
    const [{
      width,
      height
    }, unit, name, orientation] = await Promise.all([nonMetric ? sizeInches : sizeMillimeters, this.l10n.get(nonMetric ? "pdfjs-document-properties-page-size-unit-inches" : "pdfjs-document-properties-page-size-unit-millimeters"), nameId && this.l10n.get(nameId), this.l10n.get(isPortrait ? "pdfjs-document-properties-page-size-orientation-portrait" : "pdfjs-document-properties-page-size-orientation-landscape")])
    return this.l10n.get(name ? "pdfjs-document-properties-page-size-dimension-name-string" : "pdfjs-document-properties-page-size-dimension-string", {
      width,
      height,
      unit,
      name,
      orientation
    })
  }
  async #parseDate (inputDate) {
    const dateObj = PDFDateString.toDateObject(inputDate)
    return dateObj ? this.l10n.get("pdfjs-document-properties-date-time-string", {
      dateObj: dateObj.valueOf()
    }) : undefined
  }
  #parseLinearization (isLinearized) {
    return this.l10n.get(isLinearized ? "pdfjs-document-properties-linearized-yes" : "pdfjs-document-properties-linearized-no")
  }
}

;// ./web/pdf_find_utils.js
const CharacterType = {
  SPACE: 0,
  ALPHA_LETTER: 1,
  PUNCT: 2,
  HAN_LETTER: 3,
  KATAKANA_LETTER: 4,
  HIRAGANA_LETTER: 5,
  HALFWIDTH_KATAKANA_LETTER: 6,
  THAI_LETTER: 7
}
function isAlphabeticalScript (charCode) {
  return charCode < 0x2e80
}
function isAscii (charCode) {
  return (charCode & 0xff80) === 0
}
function isAsciiAlpha (charCode) {
  return charCode >= 0x61 && charCode <= 0x7a || charCode >= 0x41 && charCode <= 0x5a
}
function isAsciiDigit (charCode) {
  return charCode >= 0x30 && charCode <= 0x39
}
function isAsciiSpace (charCode) {
  return charCode === 0x20 || charCode === 0x09 || charCode === 0x0d || charCode === 0x0a
}
function isHan (charCode) {
  return charCode >= 0x3400 && charCode <= 0x9fff || charCode >= 0xf900 && charCode <= 0xfaff
}
function isKatakana (charCode) {
  return charCode >= 0x30a0 && charCode <= 0x30ff
}
function isHiragana (charCode) {
  return charCode >= 0x3040 && charCode <= 0x309f
}
function isHalfwidthKatakana (charCode) {
  return charCode >= 0xff60 && charCode <= 0xff9f
}
function isThai (charCode) {
  return (charCode & 0xff80) === 0x0e00
}
function getCharacterType (charCode) {
  if (isAlphabeticalScript(charCode)) {
    if (isAscii(charCode)) {
      if (isAsciiSpace(charCode)) {
        return CharacterType.SPACE
      } else if (isAsciiAlpha(charCode) || isAsciiDigit(charCode) || charCode === 0x5f) {
        return CharacterType.ALPHA_LETTER
      }
      return CharacterType.PUNCT
    } else if (isThai(charCode)) {
      return CharacterType.THAI_LETTER
    } else if (charCode === 0xa0) {
      return CharacterType.SPACE
    }
    return CharacterType.ALPHA_LETTER
  }
  if (isHan(charCode)) {
    return CharacterType.HAN_LETTER
  } else if (isKatakana(charCode)) {
    return CharacterType.KATAKANA_LETTER
  } else if (isHiragana(charCode)) {
    return CharacterType.HIRAGANA_LETTER
  } else if (isHalfwidthKatakana(charCode)) {
    return CharacterType.HALFWIDTH_KATAKANA_LETTER
  }
  return CharacterType.ALPHA_LETTER
}
let NormalizeWithNFKC
function getNormalizeWithNFKC () {
  NormalizeWithNFKC ||= ` ¨ª¯²-µ¸-º¼-¾Ĳ-ĳĿ-ŀŉſǄ-ǌǱ-ǳʰ-ʸ˘-˝ˠ-ˤʹͺ;΄-΅·ϐ-ϖϰ-ϲϴ-ϵϹևٵ-ٸक़-य़ড়-ঢ়য়ਲ਼ਸ਼ਖ਼-ਜ਼ਫ਼ଡ଼-ଢ଼ำຳໜ-ໝ༌གྷཌྷདྷབྷཛྷཀྵჼᴬ-ᴮᴰ-ᴺᴼ-ᵍᵏ-ᵪᵸᶛ-ᶿẚ-ẛάέήίόύώΆ᾽-῁ΈΉ῍-῏ΐΊ῝-῟ΰΎ῭-`ΌΏ´-῾ - ‑‗․-… ″-‴‶-‷‼‾⁇-⁉⁗ ⁰-ⁱ⁴-₎ₐ-ₜ₨℀-℃℅-ℇ℉-ℓℕ-№ℙ-ℝ℠-™ℤΩℨK-ℭℯ-ℱℳ-ℹ℻-⅀ⅅ-ⅉ⅐-ⅿ↉∬-∭∯-∰〈-〉①-⓪⨌⩴-⩶⫝̸ⱼ-ⱽⵯ⺟⻳⼀-⿕　〶〸-〺゛-゜ゟヿㄱ-ㆎ㆒-㆟㈀-㈞㈠-㉇㉐-㉾㊀-㏿ꚜ-ꚝꝰꟲ-ꟴꟸ-ꟹꭜ-ꭟꭩ豈-嗀塚晴凞-羽蘒諸逸-都飯-舘並-龎ﬀ-ﬆﬓ-ﬗיִײַ-זּטּ-לּמּנּ-סּףּ-פּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-﷼︐-︙︰-﹄﹇-﹒﹔-﹦﹨-﹫ﹰ-ﹲﹴﹶ-ﻼ！-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ￠-￦`
  return NormalizeWithNFKC
}

;// ./web/pdf_find_controller.js


const FindState = {
  FOUND: 0,
  NOT_FOUND: 1,
  WRAPPED: 2,
  PENDING: 3
}
const FIND_TIMEOUT = 250
const MATCH_SCROLL_OFFSET_TOP = -50
const MATCH_SCROLL_OFFSET_LEFT = -400
const CHARACTERS_TO_NORMALIZE = {
  "\u2010": "-",
  "\u2018": "'",
  "\u2019": "'",
  "\u201A": "'",
  "\u201B": "'",
  "\u201C": '"',
  "\u201D": '"',
  "\u201E": '"',
  "\u201F": '"',
  "\u00BC": "1/4",
  "\u00BD": "1/2",
  "\u00BE": "3/4"
}
const DIACRITICS_EXCEPTION = new Set([0x3099, 0x309a, 0x094d, 0x09cd, 0x0a4d, 0x0acd, 0x0b4d, 0x0bcd, 0x0c4d, 0x0ccd, 0x0d3b, 0x0d3c, 0x0d4d, 0x0dca, 0x0e3a, 0x0eba, 0x0f84, 0x1039, 0x103a, 0x1714, 0x1734, 0x17d2, 0x1a60, 0x1b44, 0x1baa, 0x1bab, 0x1bf2, 0x1bf3, 0x2d7f, 0xa806, 0xa82c, 0xa8c4, 0xa953, 0xa9c0, 0xaaf6, 0xabed, 0x0c56, 0x0f71, 0x0f72, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f80, 0x0f74])
let DIACRITICS_EXCEPTION_STR
const DIACRITICS_REG_EXP = /\p{M}+/gu
const SPECIAL_CHARS_REG_EXP = /([.*+?^${}()|[\]\\])|(\p{P})|(\s+)|(\p{M})|(\p{L})/gu
const NOT_DIACRITIC_FROM_END_REG_EXP = /([^\p{M}])\p{M}*$/u
const NOT_DIACRITIC_FROM_START_REG_EXP = /^\p{M}*([^\p{M}])/u
const SYLLABLES_REG_EXP = /[\uAC00-\uD7AF\uFA6C\uFACF-\uFAD1\uFAD5-\uFAD7]+/g
const SYLLABLES_LENGTHS = new Map()
const FIRST_CHAR_SYLLABLES_REG_EXP = "[\\u1100-\\u1112\\ud7a4-\\ud7af\\ud84a\\ud84c\\ud850\\ud854\\ud857\\ud85f]"
const NFKC_CHARS_TO_NORMALIZE = new Map()
let noSyllablesRegExp = null
let withSyllablesRegExp = null
function normalize (text) {
  const syllablePositions = []
  let m
  while ((m = SYLLABLES_REG_EXP.exec(text)) !== null) {
    let {
      index
    } = m
    for (const char of m[0]) {
      let len = SYLLABLES_LENGTHS.get(char)
      if (!len) {
        len = char.normalize("NFD").length
        SYLLABLES_LENGTHS.set(char, len)
      }
      syllablePositions.push([len, index++])
    }
  }
  let normalizationRegex
  if (syllablePositions.length === 0 && noSyllablesRegExp) {
    normalizationRegex = noSyllablesRegExp
  } else if (syllablePositions.length > 0 && withSyllablesRegExp) {
    normalizationRegex = withSyllablesRegExp
  } else {
    const replace = Object.keys(CHARACTERS_TO_NORMALIZE).join("")
    const toNormalizeWithNFKC = getNormalizeWithNFKC()
    const CJK = "(?:\\p{Ideographic}|[\u3040-\u30FF])"
    const HKDiacritics = "(?:\u3099|\u309A)"
    const CompoundWord = "\\p{Ll}-\\n\\p{Lu}"
    const regexp = `([${replace}])|([${toNormalizeWithNFKC}])|(${HKDiacritics}\\n)|(\\p{M}+(?:-\\n)?)|(${CompoundWord})|(\\S-\\n)|(${CJK}\\n)|(\\n)`
    if (syllablePositions.length === 0) {
      normalizationRegex = noSyllablesRegExp = new RegExp(regexp + "|(\\u0000)", "gum")
    } else {
      normalizationRegex = withSyllablesRegExp = new RegExp(regexp + `|(${FIRST_CHAR_SYLLABLES_REG_EXP})`, "gum")
    }
  }
  const rawDiacriticsPositions = []
  while ((m = DIACRITICS_REG_EXP.exec(text)) !== null) {
    rawDiacriticsPositions.push([m[0].length, m.index])
  }
  let normalized = text.normalize("NFD")
  const positions = [0, 0]
  let rawDiacriticsIndex = 0
  let syllableIndex = 0
  let shift = 0
  let shiftOrigin = 0
  let eol = 0
  let hasDiacritics = false
  normalized = normalized.replace(normalizationRegex, (match, p1, p2, p3, p4, p5, p6, p7, p8, p9, i) => {
    i -= shiftOrigin
    if (p1) {
      const replacement = CHARACTERS_TO_NORMALIZE[p1]
      const jj = replacement.length
      for (let j = 1; j < jj; j++) {
        positions.push(i - shift + j, shift - j)
      }
      shift -= jj - 1
      return replacement
    }
    if (p2) {
      let replacement = NFKC_CHARS_TO_NORMALIZE.get(p2)
      if (!replacement) {
        replacement = p2.normalize("NFKC")
        NFKC_CHARS_TO_NORMALIZE.set(p2, replacement)
      }
      const jj = replacement.length
      for (let j = 1; j < jj; j++) {
        positions.push(i - shift + j, shift - j)
      }
      shift -= jj - 1
      return replacement
    }
    if (p3) {
      hasDiacritics = true
      if (i + eol === rawDiacriticsPositions[rawDiacriticsIndex]?.[1]) {
        ++rawDiacriticsIndex
      } else {
        positions.push(i - 1 - shift + 1, shift - 1)
        shift -= 1
        shiftOrigin += 1
      }
      positions.push(i - shift + 1, shift)
      shiftOrigin += 1
      eol += 1
      return p3.charAt(0)
    }
    if (p4) {
      const hasTrailingDashEOL = p4.endsWith("\n")
      const len = hasTrailingDashEOL ? p4.length - 2 : p4.length
      hasDiacritics = true
      let jj = len
      if (i + eol === rawDiacriticsPositions[rawDiacriticsIndex]?.[1]) {
        jj -= rawDiacriticsPositions[rawDiacriticsIndex][0]
        ++rawDiacriticsIndex
      }
      for (let j = 1; j <= jj; j++) {
        positions.push(i - 1 - shift + j, shift - j)
      }
      shift -= jj
      shiftOrigin += jj
      if (hasTrailingDashEOL) {
        i += len - 1
        positions.push(i - shift + 1, 1 + shift)
        shift += 1
        shiftOrigin += 1
        eol += 1
        return p4.slice(0, len)
      }
      return p4
    }
    if (p5) {
      shiftOrigin += 1
      eol += 1
      return p5.replace("\n", "")
    }
    if (p6) {
      const len = p6.length - 2
      positions.push(i - shift + len, 1 + shift)
      shift += 1
      shiftOrigin += 1
      eol += 1
      return p6.slice(0, -2)
    }
    if (p7) {
      const len = p7.length - 1
      positions.push(i - shift + len, shift)
      shiftOrigin += 1
      eol += 1
      return p7.slice(0, -1)
    }
    if (p8) {
      positions.push(i - shift + 1, shift - 1)
      shift -= 1
      shiftOrigin += 1
      eol += 1
      return " "
    }
    if (i + eol === syllablePositions[syllableIndex]?.[1]) {
      const newCharLen = syllablePositions[syllableIndex][0] - 1
      ++syllableIndex
      for (let j = 1; j <= newCharLen; j++) {
        positions.push(i - (shift - j), shift - j)
      }
      shift -= newCharLen
      shiftOrigin += newCharLen
    }
    return p9
  })
  positions.push(normalized.length, shift)
  const starts = new Uint32Array(positions.length >> 1)
  const shifts = new Int32Array(positions.length >> 1)
  for (let i = 0, ii = positions.length; i < ii; i += 2) {
    starts[i >> 1] = positions[i]
    shifts[i >> 1] = positions[i + 1]
  }
  return [normalized, [starts, shifts], hasDiacritics]
}
function getOriginalIndex (diffs, pos, len) {
  if (!diffs) {
    return [pos, len]
  }
  const [starts, shifts] = diffs
  const start = pos
  const end = pos + len - 1
  let i = binarySearchFirstItem(starts, x => x >= start)
  if (starts[i] > start) {
    --i
  }
  let j = binarySearchFirstItem(starts, x => x >= end, i)
  if (starts[j] > end) {
    --j
  }
  const oldStart = start + shifts[i]
  const oldEnd = end + shifts[j]
  const oldLen = oldEnd + 1 - oldStart
  return [oldStart, oldLen]
}
class PDFFindController {
  #state = null;
  #updateMatchesCountOnProgress = true;
  #visitedPagesCount = 0;
  constructor({
    linkService,
    eventBus,
    updateMatchesCountOnProgress = true
  }) {
    this._linkService = linkService
    this._eventBus = eventBus
    this.#updateMatchesCountOnProgress = updateMatchesCountOnProgress
    this.onIsPageVisible = null
    this.#reset()
    eventBus._on("find", this.#onFind.bind(this))
    eventBus._on("findbarclose", this.#onFindBarClose.bind(this))
  }
  get highlightMatches () {
    return this._highlightMatches
  }
  get pageMatches () {
    return this._pageMatches
  }
  get pageMatchesLength () {
    return this._pageMatchesLength
  }
  get selected () {
    return this._selected
  }
  get state () {
    return this.#state
  }
  setDocument (pdfDocument) {
    if (this._pdfDocument) {
      this.#reset()
    }
    if (!pdfDocument) {
      return
    }
    this._pdfDocument = pdfDocument
    this._firstPageCapability.resolve()
  }
  #onFind (state) {
    if (!state) {
      return
    }
    const pdfDocument = this._pdfDocument
    const {
      type
    } = state
    if (this.#state === null || this.#shouldDirtyMatch(state)) {
      this._dirtyMatch = true
    }
    this.#state = state
    if (type !== "highlightallchange") {
      this.#updateUIState(FindState.PENDING)
    }
    this._firstPageCapability.promise.then(() => {
      if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) {
        return
      }
      this.#extractText()
      const findbarClosed = !this._highlightMatches
      const pendingTimeout = !!this._findTimeout
      if (this._findTimeout) {
        clearTimeout(this._findTimeout)
        this._findTimeout = null
      }
      if (!type) {
        this._findTimeout = setTimeout(() => {
          this.#nextMatch()
          this._findTimeout = null
        }, FIND_TIMEOUT)
      } else if (this._dirtyMatch) {
        this.#nextMatch()
      } else if (type === "again") {
        this.#nextMatch()
        if (findbarClosed && this.#state.highlightAll) {
          this.#updateAllPages()
        }
      } else if (type === "highlightallchange") {
        if (pendingTimeout) {
          this.#nextMatch()
        } else {
          this._highlightMatches = true
        }
        this.#updateAllPages()
      } else {
        this.#nextMatch()
      }
    })
  }
  scrollMatchIntoView ({
    element = null,
    selectedLeft = 0,
    pageIndex = -1,
    matchIndex = -1
  }) {
    if (!this._scrollMatches || !element) {
      return
    } else if (matchIndex === -1 || matchIndex !== this._selected.matchIdx) {
      return
    } else if (pageIndex === -1 || pageIndex !== this._selected.pageIdx) {
      return
    }
    this._scrollMatches = false
    const spot = {
      top: MATCH_SCROLL_OFFSET_TOP,
      left: selectedLeft + MATCH_SCROLL_OFFSET_LEFT
    }
    scrollIntoView(element, spot, true)
  }
  #reset () {
    this._highlightMatches = false
    this._scrollMatches = false
    this._pdfDocument = null
    this._pageMatches = []
    this._pageMatchesLength = []
    this.#visitedPagesCount = 0
    this.#state = null
    this._selected = {
      pageIdx: -1,
      matchIdx: -1
    }
    this._offset = {
      pageIdx: null,
      matchIdx: null,
      wrapped: false
    }
    this._extractTextPromises = []
    this._pageContents = []
    this._pageDiffs = []
    this._hasDiacritics = []
    this._matchesCountTotal = 0
    this._pagesToSearch = null
    this._pendingFindMatches = new Set()
    this._resumePageIdx = null
    this._dirtyMatch = false
    clearTimeout(this._findTimeout)
    this._findTimeout = null
    this._firstPageCapability = Promise.withResolvers()
  }
  get #query () {
    const {
      query
    } = this.#state
    if (typeof query === "string") {
      if (query !== this._rawQuery) {
        this._rawQuery = query;
        [this._normalizedQuery] = normalize(query)
      }
      return this._normalizedQuery
    }
    return (query || []).filter(q => !!q).map(q => normalize(q)[0])
  }
  #shouldDirtyMatch (state) {
    const newQuery = state.query,
      prevQuery = this.#state.query
    const newType = typeof newQuery,
      prevType = typeof prevQuery
    if (newType !== prevType) {
      return true
    }
    if (newType === "string") {
      if (newQuery !== prevQuery) {
        return true
      }
    } else if (JSON.stringify(newQuery) !== JSON.stringify(prevQuery)) {
      return true
    }
    switch (state.type) {
      case "again":
        const pageNumber = this._selected.pageIdx + 1
        const linkService = this._linkService
        return pageNumber >= 1 && pageNumber <= linkService.pagesCount && pageNumber !== linkService.page && !(this.onIsPageVisible?.(pageNumber) ?? true)
      case "highlightallchange":
        return false
    }
    return true
  }
  #isEntireWord (content, startIdx, length) {
    let match = content.slice(0, startIdx).match(NOT_DIACRITIC_FROM_END_REG_EXP)
    if (match) {
      const first = content.charCodeAt(startIdx)
      const limit = match[1].charCodeAt(0)
      if (getCharacterType(first) === getCharacterType(limit)) {
        return false
      }
    }
    match = content.slice(startIdx + length).match(NOT_DIACRITIC_FROM_START_REG_EXP)
    if (match) {
      const last = content.charCodeAt(startIdx + length - 1)
      const limit = match[1].charCodeAt(0)
      if (getCharacterType(last) === getCharacterType(limit)) {
        return false
      }
    }
    return true
  }
  #convertToRegExpString (query, hasDiacritics) {
    const {
      matchDiacritics
    } = this.#state
    let isUnicode = false
    query = query.replaceAll(SPECIAL_CHARS_REG_EXP, (match, p1, p2, p3, p4, p5) => {
      if (p1) {
        return `[ ]*\\${p1}[ ]*`
      }
      if (p2) {
        return `[ ]*${p2}[ ]*`
      }
      if (p3) {
        return "[ ]+"
      }
      if (matchDiacritics) {
        return p4 || p5
      }
      if (p4) {
        return DIACRITICS_EXCEPTION.has(p4.charCodeAt(0)) ? p4 : ""
      }
      if (hasDiacritics) {
        isUnicode = true
        return `${p5}\\p{M}*`
      }
      return p5
    })
    const trailingSpaces = "[ ]*"
    if (query.endsWith(trailingSpaces)) {
      query = query.slice(0, query.length - trailingSpaces.length)
    }
    if (matchDiacritics) {
      if (hasDiacritics) {
        DIACRITICS_EXCEPTION_STR ||= String.fromCharCode(...DIACRITICS_EXCEPTION)
        isUnicode = true
        query = `${query}(?=[${DIACRITICS_EXCEPTION_STR}]|[^\\p{M}]|$)`
      }
    }
    return [isUnicode, query]
  }
  #calculateMatch (pageIndex) {
    const query = this.#query
    if (query.length === 0) {
      return
    }
    const pageContent = this._pageContents[pageIndex]
    const matcherResult = this.match(query, pageContent, pageIndex)
    const matches = this._pageMatches[pageIndex] = []
    const matchesLength = this._pageMatchesLength[pageIndex] = []
    const diffs = this._pageDiffs[pageIndex]
    matcherResult?.forEach(({
      index,
      length
    }) => {
      const [matchPos, matchLen] = getOriginalIndex(diffs, index, length)
      if (matchLen) {
        matches.push(matchPos)
        matchesLength.push(matchLen)
      }
    })
    if (this.#state.highlightAll) {
      this.#updatePage(pageIndex)
    }
    if (this._resumePageIdx === pageIndex) {
      this._resumePageIdx = null
      this.#nextPageMatch()
    }
    const pageMatchesCount = matches.length
    this._matchesCountTotal += pageMatchesCount
    if (this.#updateMatchesCountOnProgress) {
      if (pageMatchesCount > 0) {
        this.#updateUIResultsCount()
      }
    } else if (++this.#visitedPagesCount === this._linkService.pagesCount) {
      this.#updateUIResultsCount()
    }
  }
  match (query, pageContent, pageIndex) {
    const hasDiacritics = this._hasDiacritics[pageIndex]
    let isUnicode = false
    if (typeof query === "string") {
      [isUnicode, query] = this.#convertToRegExpString(query, hasDiacritics)
    } else {
      query = query.sort().reverse().map(q => {
        const [isUnicodePart, queryPart] = this.#convertToRegExpString(q, hasDiacritics)
        isUnicode ||= isUnicodePart
        return `(${queryPart})`
      }).join("|")
    }
    if (!query) {
      return undefined
    }
    const {
      caseSensitive,
      entireWord
    } = this.#state
    const flags = `g${isUnicode ? "u" : ""}${caseSensitive ? "" : "i"}`
    query = new RegExp(query, flags)
    const matches = []
    let match
    while ((match = query.exec(pageContent)) !== null) {
      if (entireWord && !this.#isEntireWord(pageContent, match.index, match[0].length)) {
        continue
      }
      matches.push({
        index: match.index,
        length: match[0].length
      })
    }
    return matches
  }
  #extractText () {
    if (this._extractTextPromises.length > 0) {
      return
    }
    let deferred = Promise.resolve()
    const textOptions = {
      disableNormalization: true
    }
    for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
      const {
        promise,
        resolve
      } = Promise.withResolvers()
      this._extractTextPromises[i] = promise
      deferred = deferred.then(() => {
        return this._pdfDocument.getPage(i + 1).then(pdfPage => pdfPage.getTextContent(textOptions)).then(textContent => {
          const strBuf = []
          for (const textItem of textContent.items) {
            strBuf.push(textItem.str)
            if (textItem.hasEOL) {
              strBuf.push("\n")
            }
          }
          [this._pageContents[i], this._pageDiffs[i], this._hasDiacritics[i]] = normalize(strBuf.join(""))
          resolve()
        }, reason => {
          console.error(`Unable to get text content for page ${i + 1}`, reason)
          this._pageContents[i] = ""
          this._pageDiffs[i] = null
          this._hasDiacritics[i] = false
          resolve()
        })
      })
    }
  }
  #updatePage (index) {
    if (this._scrollMatches && this._selected.pageIdx === index) {
      this._linkService.page = index + 1
    }
    this._eventBus.dispatch("updatetextlayermatches", {
      source: this,
      pageIndex: index
    })
  }
  #updateAllPages () {
    this._eventBus.dispatch("updatetextlayermatches", {
      source: this,
      pageIndex: -1
    })
  }
  #nextMatch () {
    const previous = this.#state.findPrevious
    const currentPageIndex = this._linkService.page - 1
    const numPages = this._linkService.pagesCount
    this._highlightMatches = true
    if (this._dirtyMatch) {
      this._dirtyMatch = false
      this._selected.pageIdx = this._selected.matchIdx = -1
      this._offset.pageIdx = currentPageIndex
      this._offset.matchIdx = null
      this._offset.wrapped = false
      this._resumePageIdx = null
      this._pageMatches.length = 0
      this._pageMatchesLength.length = 0
      this.#visitedPagesCount = 0
      this._matchesCountTotal = 0
      this.#updateAllPages()
      for (let i = 0; i < numPages; i++) {
        if (this._pendingFindMatches.has(i)) {
          continue
        }
        this._pendingFindMatches.add(i)
        this._extractTextPromises[i].then(() => {
          this._pendingFindMatches.delete(i)
          this.#calculateMatch(i)
        })
      }
    }
    const query = this.#query
    if (query.length === 0) {
      this.#updateUIState(FindState.FOUND)
      return
    }
    if (this._resumePageIdx) {
      return
    }
    const offset = this._offset
    this._pagesToSearch = numPages
    if (offset.matchIdx !== null) {
      const numPageMatches = this._pageMatches[offset.pageIdx].length
      if (!previous && offset.matchIdx + 1 < numPageMatches || previous && offset.matchIdx > 0) {
        offset.matchIdx = previous ? offset.matchIdx - 1 : offset.matchIdx + 1
        this.#updateMatch(true)
        return
      }
      this.#advanceOffsetPage(previous)
    }
    this.#nextPageMatch()
  }
  #matchesReady (matches) {
    const offset = this._offset
    const numMatches = matches.length
    const previous = this.#state.findPrevious
    if (numMatches) {
      offset.matchIdx = previous ? numMatches - 1 : 0
      this.#updateMatch(true)
      return true
    }
    this.#advanceOffsetPage(previous)
    if (offset.wrapped) {
      offset.matchIdx = null
      if (this._pagesToSearch < 0) {
        this.#updateMatch(false)
        return true
      }
    }
    return false
  }
  #nextPageMatch () {
    if (this._resumePageIdx !== null) {
      console.error("There can only be one pending page.")
    }
    let matches = null
    do {
      const pageIdx = this._offset.pageIdx
      matches = this._pageMatches[pageIdx]
      if (!matches) {
        this._resumePageIdx = pageIdx
        break
      }
    } while (!this.#matchesReady(matches))
  }
  #advanceOffsetPage (previous) {
    const offset = this._offset
    const numPages = this._linkService.pagesCount
    offset.pageIdx = previous ? offset.pageIdx - 1 : offset.pageIdx + 1
    offset.matchIdx = null
    this._pagesToSearch--
    if (offset.pageIdx >= numPages || offset.pageIdx < 0) {
      offset.pageIdx = previous ? numPages - 1 : 0
      offset.wrapped = true
    }
  }
  #updateMatch (found = false) {
    let state = FindState.NOT_FOUND
    const wrapped = this._offset.wrapped
    this._offset.wrapped = false
    if (found) {
      const previousPage = this._selected.pageIdx
      this._selected.pageIdx = this._offset.pageIdx
      this._selected.matchIdx = this._offset.matchIdx
      state = wrapped ? FindState.WRAPPED : FindState.FOUND
      if (previousPage !== -1 && previousPage !== this._selected.pageIdx) {
        this.#updatePage(previousPage)
      }
    }
    this.#updateUIState(state, this.#state.findPrevious)
    if (this._selected.pageIdx !== -1) {
      this._scrollMatches = true
      this.#updatePage(this._selected.pageIdx)
    }
  }
  #onFindBarClose (evt) {
    const pdfDocument = this._pdfDocument
    this._firstPageCapability.promise.then(() => {
      if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) {
        return
      }
      if (this._findTimeout) {
        clearTimeout(this._findTimeout)
        this._findTimeout = null
      }
      if (this._resumePageIdx) {
        this._resumePageIdx = null
        this._dirtyMatch = true
      }
      this.#updateUIState(FindState.FOUND)
      this._highlightMatches = false
      this.#updateAllPages()
    })
  }
  #requestMatchesCount () {
    const {
      pageIdx,
      matchIdx
    } = this._selected
    let current = 0,
      total = this._matchesCountTotal
    if (matchIdx !== -1) {
      for (let i = 0; i < pageIdx; i++) {
        current += this._pageMatches[i]?.length || 0
      }
      current += matchIdx + 1
    }
    if (current < 1 || current > total) {
      current = total = 0
    }
    return {
      current,
      total
    }
  }
  #updateUIResultsCount () {
    this._eventBus.dispatch("updatefindmatchescount", {
      source: this,
      matchesCount: this.#requestMatchesCount()
    })
  }
  #updateUIState (state, previous = false) {
    if (!this.#updateMatchesCountOnProgress && (this.#visitedPagesCount !== this._linkService.pagesCount || state === FindState.PENDING)) {
      return
    }
    this._eventBus.dispatch("updatefindcontrolstate", {
      source: this,
      state,
      previous,
      entireWord: this.#state?.entireWord ?? null,
      matchesCount: this.#requestMatchesCount(),
      rawQuery: this.#state?.query ?? null
    })
  }
}

;// ./web/pdf_find_bar.js


const MATCHES_COUNT_LIMIT = 1000
class PDFFindBar {
  #mainContainer
  #resizeObserver = new ResizeObserver(this.#resizeObserverCallback.bind(this));
  constructor(options, mainContainer, eventBus) {
    this.opened = false
    this.bar = options.bar
    this.toggleButton = options.toggleButton
    this.findField = options.findField
    this.highlightAll = options.highlightAllCheckbox
    this.caseSensitive = options.caseSensitiveCheckbox
    this.matchDiacritics = options.matchDiacriticsCheckbox
    this.entireWord = options.entireWordCheckbox
    this.findMsg = options.findMsg
    this.findResultsCount = options.findResultsCount
    this.findPreviousButton = options.findPreviousButton
    this.findNextButton = options.findNextButton
    this.eventBus = eventBus
    this.#mainContainer = mainContainer
    const checkedInputs = new Map([[this.highlightAll, "highlightallchange"], [this.caseSensitive, "casesensitivitychange"], [this.entireWord, "entirewordchange"], [this.matchDiacritics, "diacriticmatchingchange"]])
    this.toggleButton.addEventListener("click", () => {
      this.toggle()
    })
    this.findField.addEventListener("input", () => {
      this.dispatchEvent("")
    })
    this.bar.addEventListener("keydown", ({
      keyCode,
      shiftKey,
      target
    }) => {
      switch (keyCode) {
        case 13:
          if (target === this.findField) {
            this.dispatchEvent("again", shiftKey)
          } else if (checkedInputs.has(target)) {
            target.checked = !target.checked
            this.dispatchEvent(checkedInputs.get(target))
          }
          break
        case 27:
          this.close()
          break
      }
    })
    this.findPreviousButton.addEventListener("click", () => {
      this.dispatchEvent("again", true)
    })
    this.findNextButton.addEventListener("click", () => {
      this.dispatchEvent("again", false)
    })
    for (const [elem, evtName] of checkedInputs) {
      elem.addEventListener("click", () => {
        this.dispatchEvent(evtName)
      })
    }
  }
  reset () {
    this.updateUIState()
  }
  dispatchEvent (type, findPrev = false) {
    this.eventBus.dispatch("find", {
      source: this,
      type,
      query: this.findField.value,
      caseSensitive: this.caseSensitive.checked,
      entireWord: this.entireWord.checked,
      highlightAll: this.highlightAll.checked,
      findPrevious: findPrev,
      matchDiacritics: this.matchDiacritics.checked
    })
  }
  updateUIState (state, previous, matchesCount) {
    const {
      findField,
      findMsg
    } = this
    let findMsgId = "",
      status = ""
    switch (state) {
      case FindState.FOUND:
        break
      case FindState.PENDING:
        status = "pending"
        break
      case FindState.NOT_FOUND:
        findMsgId = "pdfjs-find-not-found"
        status = "notFound"
        break
      case FindState.WRAPPED:
        findMsgId = previous ? "pdfjs-find-reached-top" : "pdfjs-find-reached-bottom"
        break
    }
    findField.setAttribute("data-status", status)
    findField.setAttribute("aria-invalid", state === FindState.NOT_FOUND)
    findMsg.setAttribute("data-status", status)
    if (findMsgId) {
      findMsg.setAttribute("data-l10n-id", findMsgId)
    } else {
      findMsg.removeAttribute("data-l10n-id")
      findMsg.textContent = ""
    }
    this.updateResultsCount(matchesCount)
  }
  updateResultsCount ({
    current = 0,
    total = 0
  } = {}) {
    const {
      findResultsCount
    } = this
    if (total > 0) {
      const limit = MATCHES_COUNT_LIMIT
      findResultsCount.setAttribute("data-l10n-id", total > limit ? "pdfjs-find-match-count-limit" : "pdfjs-find-match-count")
      findResultsCount.setAttribute("data-l10n-args", JSON.stringify({
        limit,
        current,
        total
      }))
    } else {
      findResultsCount.removeAttribute("data-l10n-id")
      findResultsCount.textContent = ""
    }
  }
  open () {
    if (!this.opened) {
      this.#resizeObserver.observe(this.#mainContainer)
      this.#resizeObserver.observe(this.bar)
      this.opened = true
      toggleExpandedBtn(this.toggleButton, true, this.bar)
    }
    this.findField.select()
    this.findField.focus()
  }
  close () {
    if (!this.opened) {
      return
    }
    this.#resizeObserver.disconnect()
    this.opened = false
    toggleExpandedBtn(this.toggleButton, false, this.bar)
    this.eventBus.dispatch("findbarclose", {
      source: this
    })
  }
  toggle () {
    if (this.opened) {
      this.close()
    } else {
      this.open()
    }
  }
  #resizeObserverCallback () {
    const {
      bar
    } = this
    bar.classList.remove("wrapContainers")
    const findbarHeight = bar.clientHeight
    const inputContainerHeight = bar.firstElementChild.clientHeight
    if (findbarHeight > inputContainerHeight) {
      bar.classList.add("wrapContainers")
    }
  }
}

;// ./web/pdf_history.js


const HASH_CHANGE_TIMEOUT = 1000
const POSITION_UPDATED_THRESHOLD = 50
const UPDATE_VIEWAREA_TIMEOUT = 1000
function getCurrentHash () {
  return document.location.hash
}
class PDFHistory {
  #eventAbortController = null;
  constructor({
    linkService,
    eventBus
  }) {
    this.linkService = linkService
    this.eventBus = eventBus
    this._initialized = false
    this._fingerprint = ""
    this.reset()
    this.eventBus._on("pagesinit", () => {
      this._isPagesLoaded = false
      this.eventBus._on("pagesloaded", evt => {
        this._isPagesLoaded = !!evt.pagesCount
      }, {
        once: true
      })
    })
  }
  initialize ({
    fingerprint,
    resetHistory = false,
    updateUrl = false
  }) {
    if (!fingerprint || typeof fingerprint !== "string") {
      console.error('PDFHistory.initialize: The "fingerprint" must be a non-empty string.')
      return
    }
    if (this._initialized) {
      this.reset()
    }
    const reInitialized = this._fingerprint !== "" && this._fingerprint !== fingerprint
    this._fingerprint = fingerprint
    this._updateUrl = updateUrl === true
    this._initialized = true
    this.#bindEvents()
    const state = window.history.state
    this._popStateInProgress = false
    this._blockHashChange = 0
    this._currentHash = getCurrentHash()
    this._numPositionUpdates = 0
    this._uid = this._maxUid = 0
    this._destination = null
    this._position = null
    if (!this.#isValidState(state, true) || resetHistory) {
      const {
        hash,
        page,
        rotation
      } = this.#parseCurrentHash(true)
      if (!hash || reInitialized || resetHistory) {
        this.#pushOrReplaceState(null, true)
        return
      }
      this.#pushOrReplaceState({
        hash,
        page,
        rotation
      }, true)
      return
    }
    const destination = state.destination
    this.#updateInternalState(destination, state.uid, true)
    if (destination.rotation !== undefined) {
      this._initialRotation = destination.rotation
    }
    if (destination.dest) {
      this._initialBookmark = JSON.stringify(destination.dest)
      this._destination.page = null
    } else if (destination.hash) {
      this._initialBookmark = destination.hash
    } else if (destination.page) {
      this._initialBookmark = `page=${destination.page}`
    }
  }
  reset () {
    if (this._initialized) {
      this.#pageHide()
      this._initialized = false
      this.#unbindEvents()
    }
    if (this._updateViewareaTimeout) {
      clearTimeout(this._updateViewareaTimeout)
      this._updateViewareaTimeout = null
    }
    this._initialBookmark = null
    this._initialRotation = null
  }
  push ({
    namedDest = null,
    explicitDest,
    pageNumber
  }) {
    if (!this._initialized) {
      return
    }
    if (namedDest && typeof namedDest !== "string") {
      console.error("PDFHistory.push: " + `"${namedDest}" is not a valid namedDest parameter.`)
      return
    } else if (!Array.isArray(explicitDest)) {
      console.error("PDFHistory.push: " + `"${explicitDest}" is not a valid explicitDest parameter.`)
      return
    } else if (!this.#isValidPage(pageNumber)) {
      if (pageNumber !== null || this._destination) {
        console.error("PDFHistory.push: " + `"${pageNumber}" is not a valid pageNumber parameter.`)
        return
      }
    }
    const hash = namedDest || JSON.stringify(explicitDest)
    if (!hash) {
      return
    }
    let forceReplace = false
    if (this._destination && (isDestHashesEqual(this._destination.hash, hash) || isDestArraysEqual(this._destination.dest, explicitDest))) {
      if (this._destination.page) {
        return
      }
      forceReplace = true
    }
    if (this._popStateInProgress && !forceReplace) {
      return
    }
    this.#pushOrReplaceState({
      dest: explicitDest,
      hash,
      page: pageNumber,
      rotation: this.linkService.rotation
    }, forceReplace)
    if (!this._popStateInProgress) {
      this._popStateInProgress = true
      Promise.resolve().then(() => {
        this._popStateInProgress = false
      })
    }
  }
  pushPage (pageNumber) {
    if (!this._initialized) {
      return
    }
    if (!this.#isValidPage(pageNumber)) {
      console.error(`PDFHistory.pushPage: "${pageNumber}" is not a valid page number.`)
      return
    }
    if (this._destination?.page === pageNumber) {
      return
    }
    if (this._popStateInProgress) {
      return
    }
    this.#pushOrReplaceState({
      dest: null,
      hash: `page=${pageNumber}`,
      page: pageNumber,
      rotation: this.linkService.rotation
    })
    if (!this._popStateInProgress) {
      this._popStateInProgress = true
      Promise.resolve().then(() => {
        this._popStateInProgress = false
      })
    }
  }
  pushCurrentPosition () {
    if (!this._initialized || this._popStateInProgress) {
      return
    }
    this.#tryPushCurrentPosition()
  }
  back () {
    if (!this._initialized || this._popStateInProgress) {
      return
    }
    const state = window.history.state
    if (this.#isValidState(state) && state.uid > 0) {
      window.history.back()
    }
  }
  forward () {
    if (!this._initialized || this._popStateInProgress) {
      return
    }
    const state = window.history.state
    if (this.#isValidState(state) && state.uid < this._maxUid) {
      window.history.forward()
    }
  }
  get popStateInProgress () {
    return this._initialized && (this._popStateInProgress || this._blockHashChange > 0)
  }
  get initialBookmark () {
    return this._initialized ? this._initialBookmark : null
  }
  get initialRotation () {
    return this._initialized ? this._initialRotation : null
  }
  #pushOrReplaceState (destination, forceReplace = false) {
    const shouldReplace = forceReplace || !this._destination
    const newState = {
      fingerprint: this._fingerprint,
      uid: shouldReplace ? this._uid : this._uid + 1,
      destination
    }
    this.#updateInternalState(destination, newState.uid)
    let newUrl
    if (this._updateUrl && destination?.hash) {
      const baseUrl = document.location.href.split("#", 1)[0]
      if (!baseUrl.startsWith("file://")) {
        newUrl = `${baseUrl}#${destination.hash}`
      }
    }
    if (shouldReplace) {
      window.history.replaceState(newState, "", newUrl)
    } else {
      window.history.pushState(newState, "", newUrl)
    }
  }
  #tryPushCurrentPosition (temporary = false) {
    if (!this._position) {
      return
    }
    let position = this._position
    if (temporary) {
      position = Object.assign(Object.create(null), this._position)
      position.temporary = true
    }
    if (!this._destination) {
      this.#pushOrReplaceState(position)
      return
    }
    if (this._destination.temporary) {
      this.#pushOrReplaceState(position, true)
      return
    }
    if (this._destination.hash === position.hash) {
      return
    }
    if (!this._destination.page && (POSITION_UPDATED_THRESHOLD <= 0 || this._numPositionUpdates <= POSITION_UPDATED_THRESHOLD)) {
      return
    }
    let forceReplace = false
    if (this._destination.page >= position.first && this._destination.page <= position.page) {
      if (this._destination.dest !== undefined || !this._destination.first) {
        return
      }
      forceReplace = true
    }
    this.#pushOrReplaceState(position, forceReplace)
  }
  #isValidPage (val) {
    return Number.isInteger(val) && val > 0 && val <= this.linkService.pagesCount
  }
  #isValidState (state, checkReload = false) {
    if (!state) {
      return false
    }
    if (state.fingerprint !== this._fingerprint) {
      if (checkReload) {
        if (typeof state.fingerprint !== "string" || state.fingerprint.length !== this._fingerprint.length) {
          return false
        }
        const [perfEntry] = performance.getEntriesByType("navigation")
        if (perfEntry?.type !== "reload") {
          return false
        }
      } else {
        return false
      }
    }
    if (!Number.isInteger(state.uid) || state.uid < 0) {
      return false
    }
    if (state.destination === null || typeof state.destination !== "object") {
      return false
    }
    return true
  }
  #updateInternalState (destination, uid, removeTemporary = false) {
    if (this._updateViewareaTimeout) {
      clearTimeout(this._updateViewareaTimeout)
      this._updateViewareaTimeout = null
    }
    if (removeTemporary && destination?.temporary) {
      delete destination.temporary
    }
    this._destination = destination
    this._uid = uid
    this._maxUid = Math.max(this._maxUid, uid)
    this._numPositionUpdates = 0
  }
  #parseCurrentHash (checkNameddest = false) {
    const hash = unescape(getCurrentHash()).substring(1)
    const params = parseQueryString(hash)
    const nameddest = params.get("nameddest") || ""
    let page = params.get("page") | 0
    if (!this.#isValidPage(page) || checkNameddest && nameddest.length > 0) {
      page = null
    }
    return {
      hash,
      page,
      rotation: this.linkService.rotation
    }
  }
  #updateViewarea ({
    location
  }) {
    if (this._updateViewareaTimeout) {
      clearTimeout(this._updateViewareaTimeout)
      this._updateViewareaTimeout = null
    }
    this._position = {
      hash: location.pdfOpenParams.substring(1),
      page: this.linkService.page,
      first: location.pageNumber,
      rotation: location.rotation
    }
    if (this._popStateInProgress) {
      return
    }
    if (POSITION_UPDATED_THRESHOLD > 0 && this._isPagesLoaded && this._destination && !this._destination.page) {
      this._numPositionUpdates++
    }
    if (UPDATE_VIEWAREA_TIMEOUT > 0) {
      this._updateViewareaTimeout = setTimeout(() => {
        if (!this._popStateInProgress) {
          this.#tryPushCurrentPosition(true)
        }
        this._updateViewareaTimeout = null
      }, UPDATE_VIEWAREA_TIMEOUT)
    }
  }
  #popState ({
    state
  }) {
    const newHash = getCurrentHash(),
      hashChanged = this._currentHash !== newHash
    this._currentHash = newHash
    if (!state) {
      this._uid++
      const {
        hash,
        page,
        rotation
      } = this.#parseCurrentHash()
      this.#pushOrReplaceState({
        hash,
        page,
        rotation
      }, true)
      return
    }
    if (!this.#isValidState(state)) {
      return
    }
    this._popStateInProgress = true
    if (hashChanged) {
      this._blockHashChange++
      waitOnEventOrTimeout({
        target: window,
        name: "hashchange",
        delay: HASH_CHANGE_TIMEOUT
      }).then(() => {
        this._blockHashChange--
      })
    }
    const destination = state.destination
    this.#updateInternalState(destination, state.uid, true)
    if (isValidRotation(destination.rotation)) {
      this.linkService.rotation = destination.rotation
    }
    if (destination.dest) {
      this.linkService.goToDestination(destination.dest)
    } else if (destination.hash) {
      this.linkService.setHash(destination.hash)
    } else if (destination.page) {
      this.linkService.page = destination.page
    }
    Promise.resolve().then(() => {
      this._popStateInProgress = false
    })
  }
  #pageHide () {
    if (!this._destination || this._destination.temporary) {
      this.#tryPushCurrentPosition()
    }
  }
  #bindEvents () {
    if (this.#eventAbortController) {
      return
    }
    this.#eventAbortController = new AbortController()
    const {
      signal
    } = this.#eventAbortController
    this.eventBus._on("updateviewarea", this.#updateViewarea.bind(this), {
      signal
    })
    window.addEventListener("popstate", this.#popState.bind(this), {
      signal
    })
    window.addEventListener("pagehide", this.#pageHide.bind(this), {
      signal
    })
  }
  #unbindEvents () {
    this.#eventAbortController?.abort()
    this.#eventAbortController = null
  }
}
function isDestHashesEqual (destHash, pushHash) {
  if (typeof destHash !== "string" || typeof pushHash !== "string") {
    return false
  }
  if (destHash === pushHash) {
    return true
  }
  const nameddest = parseQueryString(destHash).get("nameddest")
  if (nameddest === pushHash) {
    return true
  }
  return false
}
function isDestArraysEqual (firstDest, secondDest) {
  function isEntryEqual (first, second) {
    if (typeof first !== typeof second) {
      return false
    }
    if (Array.isArray(first) || Array.isArray(second)) {
      return false
    }
    if (first !== null && typeof first === "object" && second !== null) {
      if (Object.keys(first).length !== Object.keys(second).length) {
        return false
      }
      for (const key in first) {
        if (!isEntryEqual(first[key], second[key])) {
          return false
        }
      }
      return true
    }
    return first === second || Number.isNaN(first) && Number.isNaN(second)
  }
  if (!(Array.isArray(firstDest) && Array.isArray(secondDest))) {
    return false
  }
  if (firstDest.length !== secondDest.length) {
    return false
  }
  for (let i = 0, ii = firstDest.length; i < ii; i++) {
    if (!isEntryEqual(firstDest[i], secondDest[i])) {
      return false
    }
  }
  return true
}

;// ./web/pdf_layer_viewer.js

class PDFLayerViewer extends BaseTreeViewer {
  constructor(options) {
    super(options)
    this.eventBus._on("optionalcontentconfigchanged", evt => {
      this.#updateLayers(evt.promise)
    })
    this.eventBus._on("resetlayers", () => {
      this.#updateLayers()
    })
    this.eventBus._on("togglelayerstree", this._toggleAllTreeItems.bind(this))
  }
  reset () {
    super.reset()
    this._optionalContentConfig = null
    this._optionalContentVisibility?.clear()
    this._optionalContentVisibility = null
  }
  _dispatchEvent (layersCount) {
    this.eventBus.dispatch("layersloaded", {
      source: this,
      layersCount
    })
  }
  _bindLink (element, {
    groupId,
    input
  }) {
    const setVisibility = () => {
      const visible = input.checked
      this._optionalContentConfig.setVisibility(groupId, visible)
      const cached = this._optionalContentVisibility.get(groupId)
      if (cached) {
        cached.visible = visible
      }
      this.eventBus.dispatch("optionalcontentconfig", {
        source: this,
        promise: Promise.resolve(this._optionalContentConfig)
      })
    }
    element.onclick = evt => {
      if (evt.target === input) {
        setVisibility()
        return true
      } else if (evt.target !== element) {
        return true
      }
      input.checked = !input.checked
      setVisibility()
      return false
    }
  }
  _setNestedName (element, {
    name = null
  }) {
    if (typeof name === "string") {
      element.textContent = this._normalizeTextContent(name)
      return
    }
    element.setAttribute("data-l10n-id", "pdfjs-additional-layers")
    element.style.fontStyle = "italic"
    this._l10n.translateOnce(element)
  }
  _addToggleButton (div, {
    name = null
  }) {
    super._addToggleButton(div, name === null)
  }
  _toggleAllTreeItems () {
    if (!this._optionalContentConfig) {
      return
    }
    super._toggleAllTreeItems()
  }
  render ({
    optionalContentConfig,
    pdfDocument
  }) {
    if (this._optionalContentConfig) {
      this.reset()
    }
    this._optionalContentConfig = optionalContentConfig || null
    this._pdfDocument = pdfDocument || null
    const groups = optionalContentConfig?.getOrder()
    if (!groups) {
      this._dispatchEvent(0)
      return
    }
    this._optionalContentVisibility = new Map()
    const fragment = document.createDocumentFragment(),
      queue = [{
        parent: fragment,
        groups
      }]
    let layersCount = 0,
      hasAnyNesting = false
    while (queue.length > 0) {
      const levelData = queue.shift()
      for (const groupId of levelData.groups) {
        const div = document.createElement("div")
        div.className = "treeItem"
        const element = document.createElement("a")
        div.append(element)
        if (typeof groupId === "object") {
          hasAnyNesting = true
          this._addToggleButton(div, groupId)
          this._setNestedName(element, groupId)
          const itemsDiv = document.createElement("div")
          itemsDiv.className = "treeItems"
          div.append(itemsDiv)
          queue.push({
            parent: itemsDiv,
            groups: groupId.order
          })
        } else {
          const group = optionalContentConfig.getGroup(groupId)
          const input = document.createElement("input")
          this._bindLink(element, {
            groupId,
            input
          })
          input.type = "checkbox"
          input.checked = group.visible
          this._optionalContentVisibility.set(groupId, {
            input,
            visible: input.checked
          })
          const label = document.createElement("label")
          label.textContent = this._normalizeTextContent(group.name)
          label.append(input)
          element.append(label)
          layersCount++
        }
        levelData.parent.append(div)
      }
    }
    this._finishRendering(fragment, layersCount, hasAnyNesting)
  }
  async #updateLayers (promise = null) {
    if (!this._optionalContentConfig) {
      return
    }
    const pdfDocument = this._pdfDocument
    const optionalContentConfig = await (promise || pdfDocument.getOptionalContentConfig({
      intent: "display"
    }))
    if (pdfDocument !== this._pdfDocument) {
      return
    }
    if (promise) {
      for (const [groupId, cached] of this._optionalContentVisibility) {
        const group = optionalContentConfig.getGroup(groupId)
        if (group && cached.visible !== group.visible) {
          cached.input.checked = cached.visible = !cached.visible
        }
      }
      return
    }
    this.eventBus.dispatch("optionalcontentconfig", {
      source: this,
      promise: Promise.resolve(optionalContentConfig)
    })
    this.render({
      optionalContentConfig,
      pdfDocument: this._pdfDocument
    })
  }
}

;// ./web/pdf_outline_viewer.js


class PDFOutlineViewer extends BaseTreeViewer {
  constructor(options) {
    super(options)
    this.linkService = options.linkService
    this.downloadManager = options.downloadManager
    this.eventBus._on("toggleoutlinetree", this._toggleAllTreeItems.bind(this))
    this.eventBus._on("currentoutlineitem", this._currentOutlineItem.bind(this))
    this.eventBus._on("pagechanging", evt => {
      this._currentPageNumber = evt.pageNumber
    })
    this.eventBus._on("pagesloaded", evt => {
      this._isPagesLoaded = !!evt.pagesCount
      this._currentOutlineItemCapability?.resolve(this._isPagesLoaded)
    })
    this.eventBus._on("sidebarviewchanged", evt => {
      this._sidebarView = evt.view
    })
  }
  reset () {
    super.reset()
    this._outline = null
    this._pageNumberToDestHashCapability = null
    this._currentPageNumber = 1
    this._isPagesLoaded = null
    this._currentOutlineItemCapability?.resolve(false)
    this._currentOutlineItemCapability = null
  }
  _dispatchEvent (outlineCount) {
    this._currentOutlineItemCapability = Promise.withResolvers()
    if (outlineCount === 0 || this._pdfDocument?.loadingParams.disableAutoFetch) {
      this._currentOutlineItemCapability.resolve(false)
    } else if (this._isPagesLoaded !== null) {
      this._currentOutlineItemCapability.resolve(this._isPagesLoaded)
    }
    this.eventBus.dispatch("outlineloaded", {
      source: this,
      outlineCount,
      currentOutlineItemPromise: this._currentOutlineItemCapability.promise
    })
  }
  _bindLink (element, {
    url,
    newWindow,
    action,
    attachment,
    dest,
    setOCGState
  }) {
    const {
      linkService
    } = this
    if (url) {
      linkService.addLinkAttributes(element, url, newWindow)
      return
    }
    if (action) {
      element.href = linkService.getAnchorUrl("")
      element.onclick = () => {
        linkService.executeNamedAction(action)
        return false
      }
      return
    }
    if (attachment) {
      element.href = linkService.getAnchorUrl("")
      element.onclick = () => {
        this.downloadManager.openOrDownloadData(attachment.content, attachment.filename)
        return false
      }
      return
    }
    if (setOCGState) {
      element.href = linkService.getAnchorUrl("")
      element.onclick = () => {
        linkService.executeSetOCGState(setOCGState)
        return false
      }
      return
    }
    element.href = linkService.getDestinationHash(dest)
    element.onclick = evt => {
      this._updateCurrentTreeItem(evt.target.parentNode)
      if (dest) {
        linkService.goToDestination(dest)
      }
      return false
    }
  }
  _setStyles (element, {
    bold,
    italic
  }) {
    if (bold) {
      element.style.fontWeight = "bold"
    }
    if (italic) {
      element.style.fontStyle = "italic"
    }
  }
  _addToggleButton (div, {
    count,
    items
  }) {
    let hidden = false
    if (count < 0) {
      let totalCount = items.length
      if (totalCount > 0) {
        const queue = [...items]
        while (queue.length > 0) {
          const {
            count: nestedCount,
            items: nestedItems
          } = queue.shift()
          if (nestedCount > 0 && nestedItems.length > 0) {
            totalCount += nestedItems.length
            queue.push(...nestedItems)
          }
        }
      }
      if (Math.abs(count) === totalCount) {
        hidden = true
      }
    }
    super._addToggleButton(div, hidden)
  }
  _toggleAllTreeItems () {
    if (!this._outline) {
      return
    }
    super._toggleAllTreeItems()
  }
  render ({
    outline,
    pdfDocument
  }) {
    if (this._outline) {
      this.reset()
    }
    this._outline = outline || null
    this._pdfDocument = pdfDocument || null
    if (!outline) {
      this._dispatchEvent(0)
      return
    }
    const fragment = document.createDocumentFragment()
    const queue = [{
      parent: fragment,
      items: outline
    }]
    let outlineCount = 0,
      hasAnyNesting = false
    while (queue.length > 0) {
      const levelData = queue.shift()
      for (const item of levelData.items) {
        const div = document.createElement("div")
        div.className = "treeItem"
        const element = document.createElement("a")
        this._bindLink(element, item)
        this._setStyles(element, item)
        element.textContent = this._normalizeTextContent(item.title)
        div.append(element)
        if (item.items.length > 0) {
          hasAnyNesting = true
          this._addToggleButton(div, item)
          const itemsDiv = document.createElement("div")
          itemsDiv.className = "treeItems"
          div.append(itemsDiv)
          queue.push({
            parent: itemsDiv,
            items: item.items
          })
        }
        levelData.parent.append(div)
        outlineCount++
      }
    }
    this._finishRendering(fragment, outlineCount, hasAnyNesting)
  }
  async _currentOutlineItem () {
    if (!this._isPagesLoaded) {
      throw new Error("_currentOutlineItem: All pages have not been loaded.")
    }
    if (!this._outline || !this._pdfDocument) {
      return
    }
    const pageNumberToDestHash = await this._getPageNumberToDestHash(this._pdfDocument)
    if (!pageNumberToDestHash) {
      return
    }
    this._updateCurrentTreeItem(null)
    if (this._sidebarView !== SidebarView.OUTLINE) {
      return
    }
    for (let i = this._currentPageNumber; i > 0; i--) {
      const destHash = pageNumberToDestHash.get(i)
      if (!destHash) {
        continue
      }
      const linkElement = this.container.querySelector(`a[href="${destHash}"]`)
      if (!linkElement) {
        continue
      }
      this._scrollToCurrentTreeItem(linkElement.parentNode)
      break
    }
  }
  async _getPageNumberToDestHash (pdfDocument) {
    if (this._pageNumberToDestHashCapability) {
      return this._pageNumberToDestHashCapability.promise
    }
    this._pageNumberToDestHashCapability = Promise.withResolvers()
    const pageNumberToDestHash = new Map(),
      pageNumberNesting = new Map()
    const queue = [{
      nesting: 0,
      items: this._outline
    }]
    while (queue.length > 0) {
      const levelData = queue.shift(),
        currentNesting = levelData.nesting
      for (const {
        dest,
        items
      } of levelData.items) {
        let explicitDest, pageNumber
        if (typeof dest === "string") {
          explicitDest = await pdfDocument.getDestination(dest)
          if (pdfDocument !== this._pdfDocument) {
            return null
          }
        } else {
          explicitDest = dest
        }
        if (Array.isArray(explicitDest)) {
          const [destRef] = explicitDest
          if (destRef && typeof destRef === "object") {
            pageNumber = pdfDocument.cachedPageNumber(destRef)
          } else if (Number.isInteger(destRef)) {
            pageNumber = destRef + 1
          }
          if (Number.isInteger(pageNumber) && (!pageNumberToDestHash.has(pageNumber) || currentNesting > pageNumberNesting.get(pageNumber))) {
            const destHash = this.linkService.getDestinationHash(dest)
            pageNumberToDestHash.set(pageNumber, destHash)
            pageNumberNesting.set(pageNumber, currentNesting)
          }
        }
        if (items.length > 0) {
          queue.push({
            nesting: currentNesting + 1,
            items
          })
        }
      }
    }
    this._pageNumberToDestHashCapability.resolve(pageNumberToDestHash.size > 0 ? pageNumberToDestHash : null)
    return this._pageNumberToDestHashCapability.promise
  }
}

;// ./web/pdf_presentation_mode.js


const DELAY_BEFORE_HIDING_CONTROLS = 3000
const ACTIVE_SELECTOR = "pdfPresentationMode"
const CONTROLS_SELECTOR = "pdfPresentationModeControls"
const MOUSE_SCROLL_COOLDOWN_TIME = 50
const PAGE_SWITCH_THRESHOLD = 0.1
const SWIPE_MIN_DISTANCE_THRESHOLD = 50
const SWIPE_ANGLE_THRESHOLD = Math.PI / 6
class PDFPresentationMode {
  #state = PresentationModeState.UNKNOWN;
  #args = null;
  #fullscreenChangeAbortController = null;
  #windowAbortController = null;
  constructor({
    container,
    pdfViewer,
    eventBus
  }) {
    this.container = container
    this.pdfViewer = pdfViewer
    this.eventBus = eventBus
    this.contextMenuOpen = false
    this.mouseScrollTimeStamp = 0
    this.mouseScrollDelta = 0
    this.touchSwipeState = null
  }
  async request () {
    const {
      container,
      pdfViewer
    } = this
    if (this.active || !pdfViewer.pagesCount || !container.requestFullscreen) {
      return false
    }
    this.#addFullscreenChangeListeners()
    this.#notifyStateChange(PresentationModeState.CHANGING)
    const promise = container.requestFullscreen()
    this.#args = {
      pageNumber: pdfViewer.currentPageNumber,
      scaleValue: pdfViewer.currentScaleValue,
      scrollMode: pdfViewer.scrollMode,
      spreadMode: null,
      annotationEditorMode: null
    }
    if (pdfViewer.spreadMode !== SpreadMode.NONE && !(pdfViewer.pageViewsReady && pdfViewer.hasEqualPageSizes)) {
      console.warn("Ignoring Spread modes when entering PresentationMode, " + "since the document may contain varying page sizes.")
      this.#args.spreadMode = pdfViewer.spreadMode
    }
    if (pdfViewer.annotationEditorMode !== AnnotationEditorType.DISABLE) {
      this.#args.annotationEditorMode = pdfViewer.annotationEditorMode
    }
    try {
      await promise
      pdfViewer.focus()
      return true
    } catch {
      this.#removeFullscreenChangeListeners()
      this.#notifyStateChange(PresentationModeState.NORMAL)
    }
    return false
  }
  get active () {
    return this.#state === PresentationModeState.CHANGING || this.#state === PresentationModeState.FULLSCREEN
  }
  #mouseWheel (evt) {
    if (!this.active) {
      return
    }
    evt.preventDefault()
    const delta = normalizeWheelEventDelta(evt)
    const currentTime = Date.now()
    const storedTime = this.mouseScrollTimeStamp
    if (currentTime > storedTime && currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) {
      return
    }
    if (this.mouseScrollDelta > 0 && delta < 0 || this.mouseScrollDelta < 0 && delta > 0) {
      this.#resetMouseScrollState()
    }
    this.mouseScrollDelta += delta
    if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
      const totalDelta = this.mouseScrollDelta
      this.#resetMouseScrollState()
      const success = totalDelta > 0 ? this.pdfViewer.previousPage() : this.pdfViewer.nextPage()
      if (success) {
        this.mouseScrollTimeStamp = currentTime
      }
    }
  }
  #notifyStateChange (state) {
    this.#state = state
    this.eventBus.dispatch("presentationmodechanged", {
      source: this,
      state
    })
  }
  #enter () {
    this.#notifyStateChange(PresentationModeState.FULLSCREEN)
    this.container.classList.add(ACTIVE_SELECTOR)
    setTimeout(() => {
      this.pdfViewer.scrollMode = ScrollMode.PAGE
      if (this.#args.spreadMode !== null) {
        this.pdfViewer.spreadMode = SpreadMode.NONE
      }
      this.pdfViewer.currentPageNumber = this.#args.pageNumber
      this.pdfViewer.currentScaleValue = "page-fit"
      if (this.#args.annotationEditorMode !== null) {
        this.pdfViewer.annotationEditorMode = {
          mode: AnnotationEditorType.NONE
        }
      }
    }, 0)
    this.#addWindowListeners()
    this.#showControls()
    this.contextMenuOpen = false
    document.getSelection().empty()
  }
  #exit () {
    const pageNumber = this.pdfViewer.currentPageNumber
    this.container.classList.remove(ACTIVE_SELECTOR)
    setTimeout(() => {
      this.#removeFullscreenChangeListeners()
      this.#notifyStateChange(PresentationModeState.NORMAL)
      this.pdfViewer.scrollMode = this.#args.scrollMode
      if (this.#args.spreadMode !== null) {
        this.pdfViewer.spreadMode = this.#args.spreadMode
      }
      this.pdfViewer.currentScaleValue = this.#args.scaleValue
      this.pdfViewer.currentPageNumber = pageNumber
      if (this.#args.annotationEditorMode !== null) {
        this.pdfViewer.annotationEditorMode = {
          mode: this.#args.annotationEditorMode
        }
      }
      this.#args = null
    }, 0)
    this.#removeWindowListeners()
    this.#hideControls()
    this.#resetMouseScrollState()
    this.contextMenuOpen = false
  }
  #mouseDown (evt) {
    if (this.contextMenuOpen) {
      this.contextMenuOpen = false
      evt.preventDefault()
      return
    }
    if (evt.button !== 0) {
      return
    }
    if (evt.target.href && evt.target.parentNode?.hasAttribute("data-internal-link")) {
      return
    }
    evt.preventDefault()
    if (evt.shiftKey) {
      this.pdfViewer.previousPage()
    } else {
      this.pdfViewer.nextPage()
    }
  }
  #contextMenu () {
    this.contextMenuOpen = true
  }
  #showControls () {
    if (this.controlsTimeout) {
      clearTimeout(this.controlsTimeout)
    } else {
      this.container.classList.add(CONTROLS_SELECTOR)
    }
    this.controlsTimeout = setTimeout(() => {
      this.container.classList.remove(CONTROLS_SELECTOR)
      delete this.controlsTimeout
    }, DELAY_BEFORE_HIDING_CONTROLS)
  }
  #hideControls () {
    if (!this.controlsTimeout) {
      return
    }
    clearTimeout(this.controlsTimeout)
    this.container.classList.remove(CONTROLS_SELECTOR)
    delete this.controlsTimeout
  }
  #resetMouseScrollState () {
    this.mouseScrollTimeStamp = 0
    this.mouseScrollDelta = 0
  }
  #touchSwipe (evt) {
    if (!this.active) {
      return
    }
    if (evt.touches.length > 1) {
      this.touchSwipeState = null
      return
    }
    switch (evt.type) {
      case "touchstart":
        this.touchSwipeState = {
          startX: evt.touches[0].pageX,
          startY: evt.touches[0].pageY,
          endX: evt.touches[0].pageX,
          endY: evt.touches[0].pageY
        }
        break
      case "touchmove":
        if (this.touchSwipeState === null) {
          return
        }
        this.touchSwipeState.endX = evt.touches[0].pageX
        this.touchSwipeState.endY = evt.touches[0].pageY
        evt.preventDefault()
        break
      case "touchend":
        if (this.touchSwipeState === null) {
          return
        }
        let delta = 0
        const dx = this.touchSwipeState.endX - this.touchSwipeState.startX
        const dy = this.touchSwipeState.endY - this.touchSwipeState.startY
        const absAngle = Math.abs(Math.atan2(dy, dx))
        if (Math.abs(dx) > SWIPE_MIN_DISTANCE_THRESHOLD && (absAngle <= SWIPE_ANGLE_THRESHOLD || absAngle >= Math.PI - SWIPE_ANGLE_THRESHOLD)) {
          delta = dx
        } else if (Math.abs(dy) > SWIPE_MIN_DISTANCE_THRESHOLD && Math.abs(absAngle - Math.PI / 2) <= SWIPE_ANGLE_THRESHOLD) {
          delta = dy
        }
        if (delta > 0) {
          this.pdfViewer.previousPage()
        } else if (delta < 0) {
          this.pdfViewer.nextPage()
        }
        break
    }
  }
  #addWindowListeners () {
    if (this.#windowAbortController) {
      return
    }
    this.#windowAbortController = new AbortController()
    const {
      signal
    } = this.#windowAbortController
    const touchSwipeBind = this.#touchSwipe.bind(this)
    window.addEventListener("mousemove", this.#showControls.bind(this), {
      signal
    })
    window.addEventListener("mousedown", this.#mouseDown.bind(this), {
      signal
    })
    window.addEventListener("wheel", this.#mouseWheel.bind(this), {
      passive: false,
      signal
    })
    window.addEventListener("keydown", this.#resetMouseScrollState.bind(this), {
      signal
    })
    window.addEventListener("contextmenu", this.#contextMenu.bind(this), {
      signal
    })
    window.addEventListener("touchstart", touchSwipeBind, {
      signal
    })
    window.addEventListener("touchmove", touchSwipeBind, {
      signal
    })
    window.addEventListener("touchend", touchSwipeBind, {
      signal
    })
  }
  #removeWindowListeners () {
    this.#windowAbortController?.abort()
    this.#windowAbortController = null
  }
  #addFullscreenChangeListeners () {
    if (this.#fullscreenChangeAbortController) {
      return
    }
    this.#fullscreenChangeAbortController = new AbortController()
    window.addEventListener("fullscreenchange", () => {
      if (document.fullscreenElement) {
        this.#enter()
      } else {
        this.#exit()
      }
    }, {
      signal: this.#fullscreenChangeAbortController.signal
    })
  }
  #removeFullscreenChangeListeners () {
    this.#fullscreenChangeAbortController?.abort()
    this.#fullscreenChangeAbortController = null
  }
}

;// ./web/xfa_layer_builder.js

class XfaLayerBuilder {
  constructor({
    pdfPage,
    annotationStorage = null,
    linkService,
    xfaHtml = null
  }) {
    this.pdfPage = pdfPage
    this.annotationStorage = annotationStorage
    this.linkService = linkService
    this.xfaHtml = xfaHtml
    this.div = null
    this._cancelled = false
  }
  async render (viewport, intent = "display") {
    if (intent === "print") {
      const parameters = {
        viewport: viewport.clone({
          dontFlip: true
        }),
        div: this.div,
        xfaHtml: this.xfaHtml,
        annotationStorage: this.annotationStorage,
        linkService: this.linkService,
        intent
      }
      this.div = document.createElement("div")
      parameters.div = this.div
      return XfaLayer.render(parameters)
    }
    const xfaHtml = await this.pdfPage.getXfa()
    if (this._cancelled || !xfaHtml) {
      return {
        textDivs: []
      }
    }
    const parameters = {
      viewport: viewport.clone({
        dontFlip: true
      }),
      div: this.div,
      xfaHtml,
      annotationStorage: this.annotationStorage,
      linkService: this.linkService,
      intent
    }
    if (this.div) {
      return XfaLayer.update(parameters)
    }
    this.div = document.createElement("div")
    parameters.div = this.div
    return XfaLayer.render(parameters)
  }
  cancel () {
    this._cancelled = true
  }
  hide () {
    if (!this.div) {
      return
    }
    this.div.hidden = true
  }
}

;// ./web/print_utils.js



function getXfaHtmlForPrinting (printContainer, pdfDocument) {
  const xfaHtml = pdfDocument.allXfaHtml
  const linkService = new SimpleLinkService()
  const scale = Math.round(PixelsPerInch.PDF_TO_CSS_UNITS * 100) / 100
  for (const xfaPage of xfaHtml.children) {
    const page = document.createElement("div")
    page.className = "xfaPrintedPage"
    printContainer.append(page)
    const builder = new XfaLayerBuilder({
      pdfPage: null,
      annotationStorage: pdfDocument.annotationStorage,
      linkService,
      xfaHtml: xfaPage
    })
    const viewport = getXfaPageViewport(xfaPage, {
      scale
    })
    builder.render(viewport, "print")
    page.append(builder.div)
  }
}

;// ./web/pdf_print_service.js


let activeService = null
let dialog = null
let overlayManager = null
let viewerApp = {
  initialized: false
}
function renderPage (activeServiceOnEntry, pdfDocument, pageNumber, size, printResolution, optionalContentConfigPromise, printAnnotationStoragePromise) {
  const scratchCanvas = activeService.scratchCanvas
  const PRINT_UNITS = printResolution / PixelsPerInch.PDF
  scratchCanvas.width = Math.floor(size.width * PRINT_UNITS)
  scratchCanvas.height = Math.floor(size.height * PRINT_UNITS)
  const ctx = scratchCanvas.getContext("2d")
  ctx.save()
  ctx.fillStyle = "rgb(255, 255, 255)"
  ctx.fillRect(0, 0, scratchCanvas.width, scratchCanvas.height)
  ctx.restore()
  return Promise.all([pdfDocument.getPage(pageNumber), printAnnotationStoragePromise]).then(function ([pdfPage, printAnnotationStorage]) {
    const renderContext = {
      canvasContext: ctx,
      transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0],
      viewport: pdfPage.getViewport({
        scale: 1,
        rotation: size.rotation
      }),
      intent: "print",
      annotationMode: AnnotationMode.ENABLE_STORAGE,
      optionalContentConfigPromise,
      printAnnotationStorage
    }
    const renderTask = pdfPage.render(renderContext)
    return renderTask.promise.catch(reason => {
      if (!(reason instanceof RenderingCancelledException)) {
        console.error(reason)
      }
      throw reason
    })
  })
}
class PDFPrintService {
  constructor({
    pdfDocument,
    pagesOverview,
    printContainer,
    printResolution,
    printAnnotationStoragePromise = null
  }) {
    this.pdfDocument = pdfDocument
    this.pagesOverview = pagesOverview
    this.printContainer = printContainer
    this._printResolution = printResolution || 150
    this._optionalContentConfigPromise = pdfDocument.getOptionalContentConfig({
      intent: "print"
    })
    this._printAnnotationStoragePromise = printAnnotationStoragePromise || Promise.resolve()
    this.currentPage = -1
    this.scratchCanvas = document.createElement("canvas")
  }
  layout () {
    this.throwIfInactive()
    const body = document.querySelector("body")
    body.setAttribute("data-pdfjsprinting", true)
    const {
      width,
      height
    } = this.pagesOverview[0]
    const hasEqualPageSizes = this.pagesOverview.every(size => size.width === width && size.height === height)
    if (!hasEqualPageSizes) {
      console.warn("Not all pages have the same size. The printed result may be incorrect!")
    }
    this.pageStyleSheet = document.createElement("style")
    this.pageStyleSheet.textContent = `@page { size: ${width}pt ${height}pt;}`
    body.append(this.pageStyleSheet)
  }
  destroy () {
    if (activeService !== this) {
      return
    }
    this.printContainer.textContent = ""
    const body = document.querySelector("body")
    body.removeAttribute("data-pdfjsprinting")
    if (this.pageStyleSheet) {
      this.pageStyleSheet.remove()
      this.pageStyleSheet = null
    }
    this.scratchCanvas.width = this.scratchCanvas.height = 0
    this.scratchCanvas = null
    activeService = null
    ensureOverlay().then(function () {
      if (overlayManager.active === dialog) {
        overlayManager.close(dialog)
      }
    })
  }
  renderPages () {
    if (this.pdfDocument.isPureXfa) {
      getXfaHtmlForPrinting(this.printContainer, this.pdfDocument)
      return Promise.resolve()
    }
    const pageCount = this.pagesOverview.length
    const renderNextPage = (resolve, reject) => {
      this.throwIfInactive()
      if (++this.currentPage >= pageCount) {
        renderProgress(pageCount, pageCount)
        resolve()
        return
      }
      const index = this.currentPage
      renderProgress(index, pageCount)
      renderPage(this, this.pdfDocument, index + 1, this.pagesOverview[index], this._printResolution, this._optionalContentConfigPromise, this._printAnnotationStoragePromise).then(this.useRenderedPage.bind(this)).then(function () {
        renderNextPage(resolve, reject)
      }, reject)
    }
    return new Promise(renderNextPage)
  }
  useRenderedPage () {
    this.throwIfInactive()
    const img = document.createElement("img")
    this.scratchCanvas.toBlob(blob => {
      img.src = URL.createObjectURL(blob)
    })
    const wrapper = document.createElement("div")
    wrapper.className = "printedPage"
    wrapper.append(img)
    this.printContainer.append(wrapper)
    const {
      promise,
      resolve,
      reject
    } = Promise.withResolvers()
    img.onload = resolve
    img.onerror = reject
    promise.catch(() => { }).then(() => {
      URL.revokeObjectURL(img.src)
    })
    return promise
  }
  performPrint () {
    this.throwIfInactive()
    return new Promise(resolve => {
      setTimeout(() => {
        if (!this.active) {
          resolve()
          return
        }
        print.call(window)
        setTimeout(resolve, 20)
      }, 0)
    })
  }
  get active () {
    return this === activeService
  }
  throwIfInactive () {
    if (!this.active) {
      throw new Error("This print request was cancelled or completed.")
    }
  }
}
const print = window.print
window.print = function () {
  if (activeService) {
    console.warn("Ignored window.print() because of a pending print job.")
    return
  }
  ensureOverlay().then(function () {
    if (activeService) {
      overlayManager.open(dialog)
    }
  })
  try {
    dispatchEvent("beforeprint")
  } finally {
    if (!activeService) {
      console.error("Expected print service to be initialized.")
      ensureOverlay().then(function () {
        if (overlayManager.active === dialog) {
          overlayManager.close(dialog)
        }
      })
      return
    }
    const activeServiceOnEntry = activeService
    activeService.renderPages().then(function () {
      return activeServiceOnEntry.performPrint()
    }).catch(function () { }).then(function () {
      if (activeServiceOnEntry.active) {
        abort()
      }
    })
  }
}
function dispatchEvent (eventType) {
  const event = new CustomEvent(eventType, {
    bubbles: false,
    cancelable: false,
    detail: "custom"
  })
  window.dispatchEvent(event)
}
function abort () {
  if (activeService) {
    activeService.destroy()
    dispatchEvent("afterprint")
  }
}
function renderProgress (index, total) {
  dialog ||= document.getElementById("printServiceDialog")
  const progress = Math.round(100 * index / total)
  const progressBar = dialog.querySelector("progress")
  const progressPerc = dialog.querySelector(".relative-progress")
  progressBar.value = progress
  progressPerc.setAttribute("data-l10n-args", JSON.stringify({
    progress
  }))
}
window.addEventListener("keydown", function (event) {
  if (event.keyCode === 80 && (event.ctrlKey || event.metaKey) && !event.altKey && (!event.shiftKey || window.chrome || window.opera)) {
    window.print()
    event.preventDefault()
    event.stopImmediatePropagation()
  }
}, true)
if ("onbeforeprint" in window) {
  const stopPropagationIfNeeded = function (event) {
    if (event.detail !== "custom") {
      event.stopImmediatePropagation()
    }
  }
  window.addEventListener("beforeprint", stopPropagationIfNeeded)
  window.addEventListener("afterprint", stopPropagationIfNeeded)
}
let overlayPromise
function ensureOverlay () {
  if (!overlayPromise) {
    overlayManager = viewerApp.overlayManager
    if (!overlayManager) {
      throw new Error("The overlay manager has not yet been initialized.")
    }
    dialog ||= document.getElementById("printServiceDialog")
    overlayPromise = overlayManager.register(dialog, true)
    document.getElementById("printCancel").onclick = abort
    dialog.addEventListener("close", abort)
  }
  return overlayPromise
}
class PDFPrintServiceFactory {
  static initGlobals (app) {
    viewerApp = app
  }
  static get supportsPrinting () {
    return shadow(this, "supportsPrinting", true)
  }
  static createPrintService (params) {
    if (activeService) {
      throw new Error("The print service is created and active.")
    }
    return activeService = new PDFPrintService(params)
  }
}

;// ./web/pdf_rendering_queue.js


const CLEANUP_TIMEOUT = 30000
class PDFRenderingQueue {
  constructor() {
    this.pdfViewer = null
    this.pdfThumbnailViewer = null
    this.onIdle = null
    this.highestPriorityPage = null
    this.idleTimeout = null
    this.printing = false
    this.isThumbnailViewEnabled = false
    Object.defineProperty(this, "hasViewer", {
      value: () => !!this.pdfViewer
    })
  }
  setViewer (pdfViewer) {
    this.pdfViewer = pdfViewer
  }
  setThumbnailViewer (pdfThumbnailViewer) {
    this.pdfThumbnailViewer = pdfThumbnailViewer
  }
  isHighestPriority (view) {
    return this.highestPriorityPage === view.renderingId
  }
  renderHighestPriority (currentlyVisiblePages) {
    if (this.idleTimeout) {
      clearTimeout(this.idleTimeout)
      this.idleTimeout = null
    }
    if (this.pdfViewer.forceRendering(currentlyVisiblePages)) {
      return
    }
    if (this.isThumbnailViewEnabled && this.pdfThumbnailViewer?.forceRendering()) {
      return
    }
    if (this.printing) {
      return
    }
    if (this.onIdle) {
      this.idleTimeout = setTimeout(this.onIdle.bind(this), CLEANUP_TIMEOUT)
    }
  }
  getHighestPriority (visible, views, scrolledDown, preRenderExtra = false) {
    const visibleViews = visible.views,
      numVisible = visibleViews.length
    if (numVisible === 0) {
      return null
    }
    for (let i = 0; i < numVisible; i++) {
      const view = visibleViews[i].view
      if (!this.isViewFinished(view)) {
        return view
      }
    }
    const firstId = visible.first.id,
      lastId = visible.last.id
    if (lastId - firstId + 1 > numVisible) {
      const visibleIds = visible.ids
      for (let i = 1, ii = lastId - firstId; i < ii; i++) {
        const holeId = scrolledDown ? firstId + i : lastId - i
        if (visibleIds.has(holeId)) {
          continue
        }
        const holeView = views[holeId - 1]
        if (!this.isViewFinished(holeView)) {
          return holeView
        }
      }
    }
    let preRenderIndex = scrolledDown ? lastId : firstId - 2
    let preRenderView = views[preRenderIndex]
    if (preRenderView && !this.isViewFinished(preRenderView)) {
      return preRenderView
    }
    if (preRenderExtra) {
      preRenderIndex += scrolledDown ? 1 : -1
      preRenderView = views[preRenderIndex]
      if (preRenderView && !this.isViewFinished(preRenderView)) {
        return preRenderView
      }
    }
    return null
  }
  isViewFinished (view) {
    return view.renderingState === RenderingStates.FINISHED
  }
  renderView (view) {
    switch (view.renderingState) {
      case RenderingStates.FINISHED:
        return false
      case RenderingStates.PAUSED:
        this.highestPriorityPage = view.renderingId
        view.resume()
        break
      case RenderingStates.RUNNING:
        this.highestPriorityPage = view.renderingId
        break
      case RenderingStates.INITIAL:
        this.highestPriorityPage = view.renderingId
        view.draw().finally(() => {
          this.renderHighestPriority()
        }).catch(reason => {
          if (reason instanceof RenderingCancelledException) {
            return
          }
          console.error("renderView:", reason)
        })
        break
    }
    return true
  }
}

;// ./web/pdf_scripting_manager.js


class PDFScriptingManager {
  #closeCapability = null;
  #destroyCapability = null;
  #docProperties = null;
  #eventAbortController = null;
  #eventBus = null;
  #externalServices = null;
  #pdfDocument = null;
  #pdfViewer = null;
  #ready = false;
  #scripting = null;
  #willPrintCapability = null;
  constructor({
    eventBus,
    externalServices = null,
    docProperties = null
  }) {
    this.#eventBus = eventBus
    this.#externalServices = externalServices
    this.#docProperties = docProperties
  }
  setViewer (pdfViewer) {
    this.#pdfViewer = pdfViewer
  }
  async setDocument (pdfDocument) {
    if (this.#pdfDocument) {
      await this.#destroyScripting()
    }
    this.#pdfDocument = pdfDocument
    if (!pdfDocument) {
      return
    }
    const [objects, calculationOrder, docActions] = await Promise.all([pdfDocument.getFieldObjects(), pdfDocument.getCalculationOrderIds(), pdfDocument.getJSActions()])
    if (!objects && !docActions) {
      await this.#destroyScripting()
      return
    }
    if (pdfDocument !== this.#pdfDocument) {
      return
    }
    try {
      this.#scripting = this.#initScripting()
    } catch (error) {
      console.error("setDocument:", error)
      await this.#destroyScripting()
      return
    }
    const eventBus = this.#eventBus
    this.#eventAbortController = new AbortController()
    const {
      signal
    } = this.#eventAbortController
    eventBus._on("updatefromsandbox", event => {
      if (event?.source === window) {
        this.#updateFromSandbox(event.detail)
      }
    }, {
      signal
    })
    eventBus._on("dispatcheventinsandbox", event => {
      this.#scripting?.dispatchEventInSandbox(event.detail)
    }, {
      signal
    })
    eventBus._on("pagechanging", ({
      pageNumber,
      previous
    }) => {
      if (pageNumber === previous) {
        return
      }
      this.#dispatchPageClose(previous)
      this.#dispatchPageOpen(pageNumber)
    }, {
      signal
    })
    eventBus._on("pagerendered", ({
      pageNumber
    }) => {
      if (!this._pageOpenPending.has(pageNumber)) {
        return
      }
      if (pageNumber !== this.#pdfViewer.currentPageNumber) {
        return
      }
      this.#dispatchPageOpen(pageNumber)
    }, {
      signal
    })
    eventBus._on("pagesdestroy", async () => {
      await this.#dispatchPageClose(this.#pdfViewer.currentPageNumber)
      await this.#scripting?.dispatchEventInSandbox({
        id: "doc",
        name: "WillClose"
      })
      this.#closeCapability?.resolve()
    }, {
      signal
    })
    try {
      const docProperties = await this.#docProperties(pdfDocument)
      if (pdfDocument !== this.#pdfDocument) {
        return
      }
      await this.#scripting.createSandbox({
        objects,
        calculationOrder,
        appInfo: {
          platform: navigator.platform,
          language: navigator.language
        },
        docInfo: {
          ...docProperties,
          actions: docActions
        }
      })
      eventBus.dispatch("sandboxcreated", {
        source: this
      })
    } catch (error) {
      console.error("setDocument:", error)
      await this.#destroyScripting()
      return
    }
    await this.#scripting?.dispatchEventInSandbox({
      id: "doc",
      name: "Open"
    })
    await this.#dispatchPageOpen(this.#pdfViewer.currentPageNumber, true)
    Promise.resolve().then(() => {
      if (pdfDocument === this.#pdfDocument) {
        this.#ready = true
      }
    })
  }
  async dispatchWillSave () {
    return this.#scripting?.dispatchEventInSandbox({
      id: "doc",
      name: "WillSave"
    })
  }
  async dispatchDidSave () {
    return this.#scripting?.dispatchEventInSandbox({
      id: "doc",
      name: "DidSave"
    })
  }
  async dispatchWillPrint () {
    if (!this.#scripting) {
      return
    }
    await this.#willPrintCapability?.promise
    this.#willPrintCapability = Promise.withResolvers()
    try {
      await this.#scripting.dispatchEventInSandbox({
        id: "doc",
        name: "WillPrint"
      })
    } catch (ex) {
      this.#willPrintCapability.resolve()
      this.#willPrintCapability = null
      throw ex
    }
    await this.#willPrintCapability.promise
  }
  async dispatchDidPrint () {
    return this.#scripting?.dispatchEventInSandbox({
      id: "doc",
      name: "DidPrint"
    })
  }
  get destroyPromise () {
    return this.#destroyCapability?.promise || null
  }
  get ready () {
    return this.#ready
  }
  get _pageOpenPending () {
    return shadow(this, "_pageOpenPending", new Set())
  }
  get _visitedPages () {
    return shadow(this, "_visitedPages", new Map())
  }
  async #updateFromSandbox (detail) {
    const pdfViewer = this.#pdfViewer
    const isInPresentationMode = pdfViewer.isInPresentationMode || pdfViewer.isChangingPresentationMode
    const {
      id,
      siblings,
      command,
      value
    } = detail
    if (!id) {
      switch (command) {
        case "clear":
          console.clear()
          break
        case "error":
          console.error(value)
          break
        case "layout":
          if (!isInPresentationMode) {
            const modes = apiPageLayoutToViewerModes(value)
            pdfViewer.spreadMode = modes.spreadMode
          }
          break
        case "page-num":
          pdfViewer.currentPageNumber = value + 1
          break
        case "print":
          await pdfViewer.pagesPromise
          this.#eventBus.dispatch("print", {
            source: this
          })
          break
        case "println":
          console.log(value)
          break
        case "zoom":
          if (!isInPresentationMode) {
            pdfViewer.currentScaleValue = value
          }
          break
        case "SaveAs":
          this.#eventBus.dispatch("download", {
            source: this
          })
          break
        case "FirstPage":
          pdfViewer.currentPageNumber = 1
          break
        case "LastPage":
          pdfViewer.currentPageNumber = pdfViewer.pagesCount
          break
        case "NextPage":
          pdfViewer.nextPage()
          break
        case "PrevPage":
          pdfViewer.previousPage()
          break
        case "ZoomViewIn":
          if (!isInPresentationMode) {
            pdfViewer.increaseScale()
          }
          break
        case "ZoomViewOut":
          if (!isInPresentationMode) {
            pdfViewer.decreaseScale()
          }
          break
        case "WillPrintFinished":
          this.#willPrintCapability?.resolve()
          this.#willPrintCapability = null
          break
      }
      return
    }
    if (isInPresentationMode && detail.focus) {
      return
    }
    delete detail.id
    delete detail.siblings
    const ids = siblings ? [id, ...siblings] : [id]
    for (const elementId of ids) {
      const element = document.querySelector(`[data-element-id="${elementId}"]`)
      if (element) {
        element.dispatchEvent(new CustomEvent("updatefromsandbox", {
          detail
        }))
      } else {
        this.#pdfDocument?.annotationStorage.setValue(elementId, detail)
      }
    }
  }
  async #dispatchPageOpen (pageNumber, initialize = false) {
    const pdfDocument = this.#pdfDocument,
      visitedPages = this._visitedPages
    if (initialize) {
      this.#closeCapability = Promise.withResolvers()
    }
    if (!this.#closeCapability) {
      return
    }
    const pageView = this.#pdfViewer.getPageView(pageNumber - 1)
    if (pageView?.renderingState !== RenderingStates.FINISHED) {
      this._pageOpenPending.add(pageNumber)
      return
    }
    this._pageOpenPending.delete(pageNumber)
    const actionsPromise = (async () => {
      const actions = await (!visitedPages.has(pageNumber) ? pageView.pdfPage?.getJSActions() : null)
      if (pdfDocument !== this.#pdfDocument) {
        return
      }
      await this.#scripting?.dispatchEventInSandbox({
        id: "page",
        name: "PageOpen",
        pageNumber,
        actions
      })
    })()
    visitedPages.set(pageNumber, actionsPromise)
  }
  async #dispatchPageClose (pageNumber) {
    const pdfDocument = this.#pdfDocument,
      visitedPages = this._visitedPages
    if (!this.#closeCapability) {
      return
    }
    if (this._pageOpenPending.has(pageNumber)) {
      return
    }
    const actionsPromise = visitedPages.get(pageNumber)
    if (!actionsPromise) {
      return
    }
    visitedPages.set(pageNumber, null)
    await actionsPromise
    if (pdfDocument !== this.#pdfDocument) {
      return
    }
    await this.#scripting?.dispatchEventInSandbox({
      id: "page",
      name: "PageClose",
      pageNumber
    })
  }
  #initScripting () {
    this.#destroyCapability = Promise.withResolvers()
    if (this.#scripting) {
      throw new Error("#initScripting: Scripting already exists.")
    }
    return this.#externalServices.createScripting()
  }
  async #destroyScripting () {
    if (!this.#scripting) {
      this.#pdfDocument = null
      this.#destroyCapability?.resolve()
      return
    }
    if (this.#closeCapability) {
      await Promise.race([this.#closeCapability.promise, new Promise(resolve => {
        setTimeout(resolve, 1000)
      })]).catch(() => { })
      this.#closeCapability = null
    }
    this.#pdfDocument = null
    try {
      await this.#scripting.destroySandbox()
    } catch { }
    this.#willPrintCapability?.reject(new Error("Scripting destroyed."))
    this.#willPrintCapability = null
    this.#eventAbortController?.abort()
    this.#eventAbortController = null
    this._pageOpenPending.clear()
    this._visitedPages.clear()
    this.#scripting = null
    this.#ready = false
    this.#destroyCapability?.resolve()
  }
}

;// ./web/pdf_sidebar.js

const SIDEBAR_WIDTH_VAR = "--sidebar-width"
const SIDEBAR_MIN_WIDTH = 200
const SIDEBAR_RESIZING_CLASS = "sidebarResizing"
const UI_NOTIFICATION_CLASS = "pdfSidebarNotification"
class PDFSidebar {
  #isRTL = false;
  #mouseAC = null;
  #outerContainerWidth = null;
  #width = null;
  constructor({
    elements,
    eventBus,
    l10n
  }) {
    this.isOpen = false
    this.active = SidebarView.THUMBS
    this.isInitialViewSet = false
    this.isInitialEventDispatched = false
    this.onToggled = null
    this.onUpdateThumbnails = null
    this.outerContainer = elements.outerContainer
    this.sidebarContainer = elements.sidebarContainer
    this.toggleButton = elements.toggleButton
    this.resizer = elements.resizer
    this.thumbnailButton = elements.thumbnailButton
    this.outlineButton = elements.outlineButton
    this.attachmentsButton = elements.attachmentsButton
    this.layersButton = elements.layersButton
    this.thumbnailView = elements.thumbnailView
    this.outlineView = elements.outlineView
    this.attachmentsView = elements.attachmentsView
    this.layersView = elements.layersView
    this._currentOutlineItemButton = elements.currentOutlineItemButton
    this.eventBus = eventBus
    this.#isRTL = l10n.getDirection() === "rtl"
    this.#addEventListeners()
  }
  reset () {
    this.isInitialViewSet = false
    this.isInitialEventDispatched = false
    this.#hideUINotification(true)
    this.switchView(SidebarView.THUMBS)
    this.outlineButton.disabled = false
    this.attachmentsButton.disabled = false
    this.layersButton.disabled = false
    this._currentOutlineItemButton.disabled = true
  }
  get visibleView () {
    return this.isOpen ? this.active : SidebarView.NONE
  }
  setInitialView (view = SidebarView.NONE) {
    if (this.isInitialViewSet) {
      return
    }
    this.isInitialViewSet = true
    if (view === SidebarView.NONE || view === SidebarView.UNKNOWN) {
      this.#dispatchEvent()
      return
    }
    this.switchView(view, true)
    if (!this.isInitialEventDispatched) {
      this.#dispatchEvent()
    }
  }
  switchView (view, forceOpen = false) {
    const isViewChanged = view !== this.active
    let forceRendering = false
    switch (view) {
      case SidebarView.NONE:
        if (this.isOpen) {
          this.close()
        }
        return
      case SidebarView.THUMBS:
        if (this.isOpen && isViewChanged) {
          forceRendering = true
        }
        break
      case SidebarView.OUTLINE:
        if (this.outlineButton.disabled) {
          return
        }
        break
      case SidebarView.ATTACHMENTS:
        if (this.attachmentsButton.disabled) {
          return
        }
        break
      case SidebarView.LAYERS:
        if (this.layersButton.disabled) {
          return
        }
        break
      default:
        console.error(`PDFSidebar.switchView: "${view}" is not a valid view.`)
        return
    }
    this.active = view
    toggleCheckedBtn(this.thumbnailButton, view === SidebarView.THUMBS, this.thumbnailView)
    toggleCheckedBtn(this.outlineButton, view === SidebarView.OUTLINE, this.outlineView)
    toggleCheckedBtn(this.attachmentsButton, view === SidebarView.ATTACHMENTS, this.attachmentsView)
    toggleCheckedBtn(this.layersButton, view === SidebarView.LAYERS, this.layersView)
    if (forceOpen && !this.isOpen) {
      this.open()
      return
    }
    if (forceRendering) {
      this.onUpdateThumbnails()
      this.onToggled()
    }
    if (isViewChanged) {
      this.#dispatchEvent()
    }
  }
  open () {
    if (this.isOpen) {
      return
    }
    this.isOpen = true
    toggleExpandedBtn(this.toggleButton, true)
    this.outerContainer.classList.add("sidebarMoving", "sidebarOpen")
    if (this.active === SidebarView.THUMBS) {
      this.onUpdateThumbnails()
    }
    this.onToggled()
    this.#dispatchEvent()
    this.#hideUINotification()
  }
  close (evt = null) {
    if (!this.isOpen) {
      return
    }
    this.isOpen = false
    toggleExpandedBtn(this.toggleButton, false)
    this.outerContainer.classList.add("sidebarMoving")
    this.outerContainer.classList.remove("sidebarOpen")
    this.onToggled()
    this.#dispatchEvent()
    if (evt?.detail > 0) {
      this.toggleButton.blur()
    }
  }
  toggle (evt = null) {
    if (this.isOpen) {
      this.close(evt)
    } else {
      this.open()
    }
  }
  #dispatchEvent () {
    if (this.isInitialViewSet) {
      this.isInitialEventDispatched ||= true
    }
    this.eventBus.dispatch("sidebarviewchanged", {
      source: this,
      view: this.visibleView
    })
  }
  #showUINotification () {
    this.toggleButton.setAttribute("data-l10n-id", "pdfjs-toggle-sidebar-notification-button")
    if (!this.isOpen) {
      this.toggleButton.classList.add(UI_NOTIFICATION_CLASS)
    }
  }
  #hideUINotification (reset = false) {
    if (this.isOpen || reset) {
      this.toggleButton.classList.remove(UI_NOTIFICATION_CLASS)
    }
    if (reset) {
      this.toggleButton.setAttribute("data-l10n-id", "pdfjs-toggle-sidebar-button")
    }
  }
  #addEventListeners () {
    const {
      eventBus,
      outerContainer
    } = this
    this.sidebarContainer.addEventListener("transitionend", evt => {
      if (evt.target === this.sidebarContainer) {
        outerContainer.classList.remove("sidebarMoving")
        eventBus.dispatch("resize", {
          source: this
        })
      }
    })
    this.toggleButton.addEventListener("click", evt => {
      this.toggle(evt)
    })
    this.thumbnailButton.addEventListener("click", () => {
      this.switchView(SidebarView.THUMBS)
    })
    this.outlineButton.addEventListener("click", () => {
      this.switchView(SidebarView.OUTLINE)
    })
    this.outlineButton.addEventListener("dblclick", () => {
      eventBus.dispatch("toggleoutlinetree", {
        source: this
      })
    })
    this.attachmentsButton.addEventListener("click", () => {
      this.switchView(SidebarView.ATTACHMENTS)
    })
    this.layersButton.addEventListener("click", () => {
      this.switchView(SidebarView.LAYERS)
    })
    this.layersButton.addEventListener("dblclick", () => {
      eventBus.dispatch("resetlayers", {
        source: this
      })
    })
    this._currentOutlineItemButton.addEventListener("click", () => {
      eventBus.dispatch("currentoutlineitem", {
        source: this
      })
    })
    const onTreeLoaded = (count, button, view) => {
      button.disabled = !count
      if (count) {
        this.#showUINotification()
      } else if (this.active === view) {
        this.switchView(SidebarView.THUMBS)
      }
    }
    eventBus._on("outlineloaded", evt => {
      onTreeLoaded(evt.outlineCount, this.outlineButton, SidebarView.OUTLINE)
      evt.currentOutlineItemPromise.then(enabled => {
        if (!this.isInitialViewSet) {
          return
        }
        this._currentOutlineItemButton.disabled = !enabled
      })
    })
    eventBus._on("attachmentsloaded", evt => {
      onTreeLoaded(evt.attachmentsCount, this.attachmentsButton, SidebarView.ATTACHMENTS)
    })
    eventBus._on("layersloaded", evt => {
      onTreeLoaded(evt.layersCount, this.layersButton, SidebarView.LAYERS)
    })
    eventBus._on("presentationmodechanged", evt => {
      if (evt.state === PresentationModeState.NORMAL && this.visibleView === SidebarView.THUMBS) {
        this.onUpdateThumbnails()
      }
    })
    this.resizer.addEventListener("mousedown", evt => {
      if (evt.button !== 0) {
        return
      }
      outerContainer.classList.add(SIDEBAR_RESIZING_CLASS)
      this.#mouseAC = new AbortController()
      const opts = {
        signal: this.#mouseAC.signal
      }
      window.addEventListener("mousemove", this.#mouseMove.bind(this), opts)
      window.addEventListener("mouseup", this.#mouseUp.bind(this), opts)
      window.addEventListener("blur", this.#mouseUp.bind(this), opts)
    })
    eventBus._on("resize", evt => {
      if (evt.source !== window) {
        return
      }
      this.#outerContainerWidth = null
      if (!this.#width) {
        return
      }
      if (!this.isOpen) {
        this.#updateWidth(this.#width)
        return
      }
      outerContainer.classList.add(SIDEBAR_RESIZING_CLASS)
      const updated = this.#updateWidth(this.#width)
      Promise.resolve().then(() => {
        outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS)
        if (updated) {
          eventBus.dispatch("resize", {
            source: this
          })
        }
      })
    })
  }
  get outerContainerWidth () {
    return this.#outerContainerWidth ||= this.outerContainer.clientWidth
  }
  #updateWidth (width = 0) {
    const maxWidth = Math.floor(this.outerContainerWidth / 2)
    if (width > maxWidth) {
      width = maxWidth
    }
    if (width < SIDEBAR_MIN_WIDTH) {
      width = SIDEBAR_MIN_WIDTH
    }
    if (width === this.#width) {
      return false
    }
    this.#width = width
    docStyle.setProperty(SIDEBAR_WIDTH_VAR, `${width}px`)
    return true
  }
  #mouseMove (evt) {
    let width = evt.clientX
    if (this.#isRTL) {
      width = this.outerContainerWidth - width
    }
    this.#updateWidth(width)
  }
  #mouseUp (evt) {
    this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS)
    this.eventBus.dispatch("resize", {
      source: this
    })
    this.#mouseAC?.abort()
    this.#mouseAC = null
  }
}

;// ./web/pdf_thumbnail_view.js


const DRAW_UPSCALE_FACTOR = 2
const MAX_NUM_SCALING_STEPS = 3
const THUMBNAIL_WIDTH = 98
class TempImageFactory {
  static #tempCanvas = null;
  static getCanvas (width, height) {
    const tempCanvas = this.#tempCanvas ||= document.createElement("canvas")
    tempCanvas.width = width
    tempCanvas.height = height
    const ctx = tempCanvas.getContext("2d", {
      alpha: false
    })
    ctx.save()
    ctx.fillStyle = "rgb(255, 255, 255)"
    ctx.fillRect(0, 0, width, height)
    ctx.restore()
    return [tempCanvas, tempCanvas.getContext("2d")]
  }
  static destroyCanvas () {
    const tempCanvas = this.#tempCanvas
    if (tempCanvas) {
      tempCanvas.width = 0
      tempCanvas.height = 0
    }
    this.#tempCanvas = null
  }
}
class PDFThumbnailView {
  constructor({
    container,
    eventBus,
    id,
    defaultViewport,
    optionalContentConfigPromise,
    linkService,
    renderingQueue,
    pageColors,
    enableHWA
  }) {
    this.id = id
    this.renderingId = "thumbnail" + id
    this.pageLabel = null
    this.pdfPage = null
    this.rotation = 0
    this.viewport = defaultViewport
    this.pdfPageRotate = defaultViewport.rotation
    this._optionalContentConfigPromise = optionalContentConfigPromise || null
    this.pageColors = pageColors || null
    this.enableHWA = enableHWA || false
    this.eventBus = eventBus
    this.linkService = linkService
    this.renderingQueue = renderingQueue
    this.renderTask = null
    this.renderingState = RenderingStates.INITIAL
    this.resume = null
    const anchor = document.createElement("a")
    anchor.href = linkService.getAnchorUrl("#page=" + id)
    anchor.setAttribute("data-l10n-id", "pdfjs-thumb-page-title")
    anchor.setAttribute("data-l10n-args", this.#pageL10nArgs)
    anchor.onclick = function () {
      linkService.goToPage(id)
      return false
    }
    this.anchor = anchor
    const div = document.createElement("div")
    div.className = "thumbnail"
    div.setAttribute("data-page-number", this.id)
    this.div = div
    this.#updateDims()
    const img = document.createElement("div")
    img.className = "thumbnailImage"
    this._placeholderImg = img
    div.append(img)
    anchor.append(div)
    container.append(anchor)
  }
  #updateDims () {
    const {
      width,
      height
    } = this.viewport
    const ratio = width / height
    this.canvasWidth = THUMBNAIL_WIDTH
    this.canvasHeight = this.canvasWidth / ratio | 0
    this.scale = this.canvasWidth / width
    const {
      style
    } = this.div
    style.setProperty("--thumbnail-width", `${this.canvasWidth}px`)
    style.setProperty("--thumbnail-height", `${this.canvasHeight}px`)
  }
  setPdfPage (pdfPage) {
    this.pdfPage = pdfPage
    this.pdfPageRotate = pdfPage.rotate
    const totalRotation = (this.rotation + this.pdfPageRotate) % 360
    this.viewport = pdfPage.getViewport({
      scale: 1,
      rotation: totalRotation
    })
    this.reset()
  }
  reset () {
    this.cancelRendering()
    this.renderingState = RenderingStates.INITIAL
    this.div.removeAttribute("data-loaded")
    this.image?.replaceWith(this._placeholderImg)
    this.#updateDims()
    if (this.image) {
      this.image.removeAttribute("src")
      delete this.image
    }
  }
  update ({
    rotation = null
  }) {
    if (typeof rotation === "number") {
      this.rotation = rotation
    }
    const totalRotation = (this.rotation + this.pdfPageRotate) % 360
    this.viewport = this.viewport.clone({
      scale: 1,
      rotation: totalRotation
    })
    this.reset()
  }
  cancelRendering () {
    if (this.renderTask) {
      this.renderTask.cancel()
      this.renderTask = null
    }
    this.resume = null
  }
  #getPageDrawContext (upscaleFactor = 1, enableHWA = this.enableHWA) {
    const canvas = document.createElement("canvas")
    const ctx = canvas.getContext("2d", {
      alpha: false,
      willReadFrequently: !enableHWA
    })
    const outputScale = new OutputScale()
    canvas.width = upscaleFactor * this.canvasWidth * outputScale.sx | 0
    canvas.height = upscaleFactor * this.canvasHeight * outputScale.sy | 0
    const transform = outputScale.scaled ? [outputScale.sx, 0, 0, outputScale.sy, 0, 0] : null
    return {
      ctx,
      canvas,
      transform
    }
  }
  #convertCanvasToImage (canvas) {
    if (this.renderingState !== RenderingStates.FINISHED) {
      throw new Error("#convertCanvasToImage: Rendering has not finished.")
    }
    const reducedCanvas = this.#reduceImage(canvas)
    const image = document.createElement("img")
    image.className = "thumbnailImage"
    image.setAttribute("data-l10n-id", "pdfjs-thumb-page-canvas")
    image.setAttribute("data-l10n-args", this.#pageL10nArgs)
    image.src = reducedCanvas.toDataURL()
    this.image = image
    this.div.setAttribute("data-loaded", true)
    this._placeholderImg.replaceWith(image)
    reducedCanvas.width = 0
    reducedCanvas.height = 0
  }
  async #finishRenderTask (renderTask, canvas, error = null) {
    if (renderTask === this.renderTask) {
      this.renderTask = null
    }
    if (error instanceof RenderingCancelledException) {
      return
    }
    this.renderingState = RenderingStates.FINISHED
    this.#convertCanvasToImage(canvas)
    if (error) {
      throw error
    }
  }
  async draw () {
    if (this.renderingState !== RenderingStates.INITIAL) {
      console.error("Must be in new state before drawing")
      return undefined
    }
    const {
      pdfPage
    } = this
    if (!pdfPage) {
      this.renderingState = RenderingStates.FINISHED
      throw new Error("pdfPage is not loaded")
    }
    this.renderingState = RenderingStates.RUNNING
    const {
      ctx,
      canvas,
      transform
    } = this.#getPageDrawContext(DRAW_UPSCALE_FACTOR)
    const drawViewport = this.viewport.clone({
      scale: DRAW_UPSCALE_FACTOR * this.scale
    })
    const renderContinueCallback = cont => {
      if (!this.renderingQueue.isHighestPriority(this)) {
        this.renderingState = RenderingStates.PAUSED
        this.resume = () => {
          this.renderingState = RenderingStates.RUNNING
          cont()
        }
        return
      }
      cont()
    }
    const renderContext = {
      canvasContext: ctx,
      transform,
      viewport: drawViewport,
      optionalContentConfigPromise: this._optionalContentConfigPromise,
      pageColors: this.pageColors
    }
    const renderTask = this.renderTask = pdfPage.render(renderContext)
    renderTask.onContinue = renderContinueCallback
    const resultPromise = renderTask.promise.then(() => this.#finishRenderTask(renderTask, canvas), error => this.#finishRenderTask(renderTask, canvas, error))
    resultPromise.finally(() => {
      canvas.width = 0
      canvas.height = 0
      this.eventBus.dispatch("thumbnailrendered", {
        source: this,
        pageNumber: this.id,
        pdfPage: this.pdfPage
      })
    })
    return resultPromise
  }
  setImage (pageView) {
    if (this.renderingState !== RenderingStates.INITIAL) {
      return
    }
    const {
      thumbnailCanvas: canvas,
      pdfPage,
      scale
    } = pageView
    if (!canvas) {
      return
    }
    if (!this.pdfPage) {
      this.setPdfPage(pdfPage)
    }
    if (scale < this.scale) {
      return
    }
    this.renderingState = RenderingStates.FINISHED
    this.#convertCanvasToImage(canvas)
  }
  #reduceImage (img) {
    const {
      ctx,
      canvas
    } = this.#getPageDrawContext(1, true)
    if (img.width <= 2 * canvas.width) {
      ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0, canvas.width, canvas.height)
      return canvas
    }
    let reducedWidth = canvas.width << MAX_NUM_SCALING_STEPS
    let reducedHeight = canvas.height << MAX_NUM_SCALING_STEPS
    const [reducedImage, reducedImageCtx] = TempImageFactory.getCanvas(reducedWidth, reducedHeight)
    while (reducedWidth > img.width || reducedHeight > img.height) {
      reducedWidth >>= 1
      reducedHeight >>= 1
    }
    reducedImageCtx.drawImage(img, 0, 0, img.width, img.height, 0, 0, reducedWidth, reducedHeight)
    while (reducedWidth > 2 * canvas.width) {
      reducedImageCtx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, reducedWidth >> 1, reducedHeight >> 1)
      reducedWidth >>= 1
      reducedHeight >>= 1
    }
    ctx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, canvas.width, canvas.height)
    return canvas
  }
  get #pageL10nArgs () {
    return JSON.stringify({
      page: this.pageLabel ?? this.id
    })
  }
  setPageLabel (label) {
    this.pageLabel = typeof label === "string" ? label : null
    this.anchor.setAttribute("data-l10n-args", this.#pageL10nArgs)
    if (this.renderingState !== RenderingStates.FINISHED) {
      return
    }
    this.image?.setAttribute("data-l10n-args", this.#pageL10nArgs)
  }
}

;// ./web/pdf_thumbnail_viewer.js


const THUMBNAIL_SCROLL_MARGIN = -19
const THUMBNAIL_SELECTED_CLASS = "selected"
class PDFThumbnailViewer {
  constructor({
    container,
    eventBus,
    linkService,
    renderingQueue,
    pageColors,
    abortSignal,
    enableHWA
  }) {
    this.container = container
    this.eventBus = eventBus
    this.linkService = linkService
    this.renderingQueue = renderingQueue
    this.pageColors = pageColors || null
    this.enableHWA = enableHWA || false
    this.scroll = watchScroll(this.container, this.#scrollUpdated.bind(this), abortSignal)
    this.#resetView()
  }
  #scrollUpdated () {
    this.renderingQueue.renderHighestPriority()
  }
  getThumbnail (index) {
    return this._thumbnails[index]
  }
  #getVisibleThumbs () {
    return getVisibleElements({
      scrollEl: this.container,
      views: this._thumbnails
    })
  }
  scrollThumbnailIntoView (pageNumber) {
    if (!this.pdfDocument) {
      return
    }
    const thumbnailView = this._thumbnails[pageNumber - 1]
    if (!thumbnailView) {
      console.error('scrollThumbnailIntoView: Invalid "pageNumber" parameter.')
      return
    }
    if (pageNumber !== this._currentPageNumber) {
      const prevThumbnailView = this._thumbnails[this._currentPageNumber - 1]
      prevThumbnailView.div.classList.remove(THUMBNAIL_SELECTED_CLASS)
      thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS)
    }
    const {
      first,
      last,
      views
    } = this.#getVisibleThumbs()
    if (views.length > 0) {
      let shouldScroll = false
      if (pageNumber <= first.id || pageNumber >= last.id) {
        shouldScroll = true
      } else {
        for (const {
          id,
          percent
        } of views) {
          if (id !== pageNumber) {
            continue
          }
          shouldScroll = percent < 100
          break
        }
      }
      if (shouldScroll) {
        scrollIntoView(thumbnailView.div, {
          top: THUMBNAIL_SCROLL_MARGIN
        })
      }
    }
    this._currentPageNumber = pageNumber
  }
  get pagesRotation () {
    return this._pagesRotation
  }
  set pagesRotation (rotation) {
    if (!isValidRotation(rotation)) {
      throw new Error("Invalid thumbnails rotation angle.")
    }
    if (!this.pdfDocument) {
      return
    }
    if (this._pagesRotation === rotation) {
      return
    }
    this._pagesRotation = rotation
    const updateArgs = {
      rotation
    }
    for (const thumbnail of this._thumbnails) {
      thumbnail.update(updateArgs)
    }
  }
  cleanup () {
    for (const thumbnail of this._thumbnails) {
      if (thumbnail.renderingState !== RenderingStates.FINISHED) {
        thumbnail.reset()
      }
    }
    TempImageFactory.destroyCanvas()
  }
  #resetView () {
    this._thumbnails = []
    this._currentPageNumber = 1
    this._pageLabels = null
    this._pagesRotation = 0
    this.container.textContent = ""
  }
  setDocument (pdfDocument) {
    if (this.pdfDocument) {
      this.#cancelRendering()
      this.#resetView()
    }
    this.pdfDocument = pdfDocument
    if (!pdfDocument) {
      return
    }
    const firstPagePromise = pdfDocument.getPage(1)
    const optionalContentConfigPromise = pdfDocument.getOptionalContentConfig({
      intent: "display"
    })
    firstPagePromise.then(firstPdfPage => {
      const pagesCount = pdfDocument.numPages
      const viewport = firstPdfPage.getViewport({
        scale: 1
      })
      for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) {
        const thumbnail = new PDFThumbnailView({
          container: this.container,
          eventBus: this.eventBus,
          id: pageNum,
          defaultViewport: viewport.clone(),
          optionalContentConfigPromise,
          linkService: this.linkService,
          renderingQueue: this.renderingQueue,
          pageColors: this.pageColors,
          enableHWA: this.enableHWA
        })
        this._thumbnails.push(thumbnail)
      }
      this._thumbnails[0]?.setPdfPage(firstPdfPage)
      const thumbnailView = this._thumbnails[this._currentPageNumber - 1]
      thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS)
    }).catch(reason => {
      console.error("Unable to initialize thumbnail viewer", reason)
    })
  }
  #cancelRendering () {
    for (const thumbnail of this._thumbnails) {
      thumbnail.cancelRendering()
    }
  }
  setPageLabels (labels) {
    if (!this.pdfDocument) {
      return
    }
    if (!labels) {
      this._pageLabels = null
    } else if (!(Array.isArray(labels) && this.pdfDocument.numPages === labels.length)) {
      this._pageLabels = null
      console.error("PDFThumbnailViewer_setPageLabels: Invalid page labels.")
    } else {
      this._pageLabels = labels
    }
    for (let i = 0, ii = this._thumbnails.length; i < ii; i++) {
      this._thumbnails[i].setPageLabel(this._pageLabels?.[i] ?? null)
    }
  }
  async #ensurePdfPageLoaded (thumbView) {
    if (thumbView.pdfPage) {
      return thumbView.pdfPage
    }
    try {
      const pdfPage = await this.pdfDocument.getPage(thumbView.id)
      if (!thumbView.pdfPage) {
        thumbView.setPdfPage(pdfPage)
      }
      return pdfPage
    } catch (reason) {
      console.error("Unable to get page for thumb view", reason)
      return null
    }
  }
  #getScrollAhead (visible) {
    if (visible.first?.id === 1) {
      return true
    } else if (visible.last?.id === this._thumbnails.length) {
      return false
    }
    return this.scroll.down
  }
  forceRendering () {
    const visibleThumbs = this.#getVisibleThumbs()
    const scrollAhead = this.#getScrollAhead(visibleThumbs)
    const thumbView = this.renderingQueue.getHighestPriority(visibleThumbs, this._thumbnails, scrollAhead)
    if (thumbView) {
      this.#ensurePdfPageLoaded(thumbView).then(() => {
        this.renderingQueue.renderView(thumbView)
      })
      return true
    }
    return false
  }
}

;// ./web/annotation_editor_layer_builder.js


class AnnotationEditorLayerBuilder {
  #annotationLayer = null;
  #drawLayer = null;
  #onAppend = null;
  #structTreeLayer = null;
  #textLayer = null;
  #uiManager
  constructor(options) {
    this.pdfPage = options.pdfPage
    this.accessibilityManager = options.accessibilityManager
    this.l10n = options.l10n
    this.l10n ||= new genericl10n_GenericL10n()
    this.annotationEditorLayer = null
    this.div = null
    this._cancelled = false
    this.#uiManager = options.uiManager
    this.#annotationLayer = options.annotationLayer || null
    this.#textLayer = options.textLayer || null
    this.#drawLayer = options.drawLayer || null
    this.#onAppend = options.onAppend || null
    this.#structTreeLayer = options.structTreeLayer || null
  }
  async render (viewport, intent = "display") {
    if (intent !== "display") {
      return
    }
    if (this._cancelled) {
      return
    }
    const clonedViewport = viewport.clone({
      dontFlip: true
    })
    if (this.div) {
      this.annotationEditorLayer.update({
        viewport: clonedViewport
      })
      this.show()
      return
    }
    const div = this.div = document.createElement("div")
    div.className = "annotationEditorLayer"
    div.hidden = true
    div.dir = this.#uiManager.direction
    this.#onAppend?.(div)
    this.annotationEditorLayer = new AnnotationEditorLayer({
      uiManager: this.#uiManager,
      div,
      structTreeLayer: this.#structTreeLayer,
      accessibilityManager: this.accessibilityManager,
      pageIndex: this.pdfPage.pageNumber - 1,
      l10n: this.l10n,
      viewport: clonedViewport,
      annotationLayer: this.#annotationLayer,
      textLayer: this.#textLayer,
      drawLayer: this.#drawLayer
    })
    const parameters = {
      viewport: clonedViewport,
      div,
      annotations: null,
      intent
    }
    this.annotationEditorLayer.render(parameters)
    this.show()
  }
  cancel () {
    this._cancelled = true
    if (!this.div) {
      return
    }
    this.annotationEditorLayer.destroy()
  }
  hide () {
    if (!this.div) {
      return
    }
    this.annotationEditorLayer.pause(true)
    this.div.hidden = true
  }
  show () {
    if (!this.div || this.annotationEditorLayer.isInvisible) {
      return
    }
    this.div.hidden = false
    this.annotationEditorLayer.pause(false)
  }
}

;// ./web/annotation_layer_builder.js


class AnnotationLayerBuilder {
  #onAppend = null;
  #eventAbortController = null;
  constructor({
    pdfPage,
    linkService,
    downloadManager,
    annotationStorage = null,
    imageResourcesPath = "",
    renderForms = true,
    enableScripting = false,
    hasJSActionsPromise = null,
    fieldObjectsPromise = null,
    annotationCanvasMap = null,
    accessibilityManager = null,
    annotationEditorUIManager = null,
    onAppend = null
  }) {
    this.pdfPage = pdfPage
    this.linkService = linkService
    this.downloadManager = downloadManager
    this.imageResourcesPath = imageResourcesPath
    this.renderForms = renderForms
    this.annotationStorage = annotationStorage
    this.enableScripting = enableScripting
    this._hasJSActionsPromise = hasJSActionsPromise || Promise.resolve(false)
    this._fieldObjectsPromise = fieldObjectsPromise || Promise.resolve(null)
    this._annotationCanvasMap = annotationCanvasMap
    this._accessibilityManager = accessibilityManager
    this._annotationEditorUIManager = annotationEditorUIManager
    this.#onAppend = onAppend
    this.annotationLayer = null
    this.div = null
    this._cancelled = false
    this._eventBus = linkService.eventBus
  }
  async render (viewport, options, intent = "display") {
    if (this.div) {
      if (this._cancelled || !this.annotationLayer) {
        return
      }
      this.annotationLayer.update({
        viewport: viewport.clone({
          dontFlip: true
        })
      })
      return
    }
    const [annotations, hasJSActions, fieldObjects] = await Promise.all([this.pdfPage.getAnnotations({
      intent
    }), this._hasJSActionsPromise, this._fieldObjectsPromise])
    if (this._cancelled) {
      return
    }
    const div = this.div = document.createElement("div")
    div.className = "annotationLayer"
    this.#onAppend?.(div)
    if (annotations.length === 0) {
      this.hide()
      return
    }
    this.annotationLayer = new AnnotationLayer({
      div,
      accessibilityManager: this._accessibilityManager,
      annotationCanvasMap: this._annotationCanvasMap,
      annotationEditorUIManager: this._annotationEditorUIManager,
      page: this.pdfPage,
      viewport: viewport.clone({
        dontFlip: true
      }),
      structTreeLayer: options?.structTreeLayer || null
    })
    await this.annotationLayer.render({
      annotations,
      imageResourcesPath: this.imageResourcesPath,
      renderForms: this.renderForms,
      linkService: this.linkService,
      downloadManager: this.downloadManager,
      annotationStorage: this.annotationStorage,
      enableScripting: this.enableScripting,
      hasJSActions,
      fieldObjects
    })
    if (this.linkService.isInPresentationMode) {
      this.#updatePresentationModeState(PresentationModeState.FULLSCREEN)
    }
    if (!this.#eventAbortController) {
      this.#eventAbortController = new AbortController()
      this._eventBus?._on("presentationmodechanged", evt => {
        this.#updatePresentationModeState(evt.state)
      }, {
        signal: this.#eventAbortController.signal
      })
    }
  }
  cancel () {
    this._cancelled = true
    this.#eventAbortController?.abort()
    this.#eventAbortController = null
  }
  hide () {
    if (!this.div) {
      return
    }
    this.div.hidden = true
  }
  hasEditableAnnotations () {
    return !!this.annotationLayer?.hasEditableAnnotations()
  }
  #updatePresentationModeState (state) {
    if (!this.div) {
      return
    }
    let disableFormElements = false
    switch (state) {
      case PresentationModeState.FULLSCREEN:
        disableFormElements = true
        break
      case PresentationModeState.NORMAL:
        break
      default:
        return
    }
    for (const section of this.div.childNodes) {
      if (section.hasAttribute("data-internal-link")) {
        continue
      }
      section.inert = disableFormElements
    }
  }
}

;// ./web/draw_layer_builder.js

class DrawLayerBuilder {
  #drawLayer = null;
  constructor(options) {
    this.pageIndex = options.pageIndex
  }
  async render (intent = "display") {
    if (intent !== "display" || this.#drawLayer || this._cancelled) {
      return
    }
    this.#drawLayer = new DrawLayer({
      pageIndex: this.pageIndex
    })
  }
  cancel () {
    this._cancelled = true
    if (!this.#drawLayer) {
      return
    }
    this.#drawLayer.destroy()
    this.#drawLayer = null
  }
  setParent (parent) {
    this.#drawLayer?.setParent(parent)
  }
  getDrawLayer () {
    return this.#drawLayer
  }
}

;// ./web/struct_tree_layer_builder.js

const PDF_ROLE_TO_HTML_ROLE = {
  Document: null,
  DocumentFragment: null,
  Part: "group",
  Sect: "group",
  Div: "group",
  Aside: "note",
  NonStruct: "none",
  P: null,
  H: "heading",
  Title: null,
  FENote: "note",
  Sub: "group",
  Lbl: null,
  Span: null,
  Em: null,
  Strong: null,
  Link: "link",
  Annot: "note",
  Form: "form",
  Ruby: null,
  RB: null,
  RT: null,
  RP: null,
  Warichu: null,
  WT: null,
  WP: null,
  L: "list",
  LI: "listitem",
  LBody: null,
  Table: "table",
  TR: "row",
  TH: "columnheader",
  TD: "cell",
  THead: "columnheader",
  TBody: null,
  TFoot: null,
  Caption: null,
  Figure: "figure",
  Formula: null,
  Artifact: null
}
const HEADING_PATTERN = /^H(\d+)$/
class StructTreeLayerBuilder {
  #promise
  #treeDom = null;
  #treePromise
  #elementAttributes = new Map();
  #rawDims
  #elementsToAddToTextLayer = null;
  constructor(pdfPage, rawDims) {
    this.#promise = pdfPage.getStructTree()
    this.#rawDims = rawDims
  }
  async render () {
    if (this.#treePromise) {
      return this.#treePromise
    }
    const {
      promise,
      resolve,
      reject
    } = Promise.withResolvers()
    this.#treePromise = promise
    try {
      this.#treeDom = this.#walk(await this.#promise)
    } catch (ex) {
      reject(ex)
    }
    this.#promise = null
    this.#treeDom?.classList.add("structTree")
    resolve(this.#treeDom)
    return promise
  }
  async getAriaAttributes (annotationId) {
    try {
      await this.render()
      return this.#elementAttributes.get(annotationId)
    } catch { }
    return null
  }
  hide () {
    if (this.#treeDom && !this.#treeDom.hidden) {
      this.#treeDom.hidden = true
    }
  }
  show () {
    if (this.#treeDom?.hidden) {
      this.#treeDom.hidden = false
    }
  }
  #setAttributes (structElement, htmlElement) {
    const {
      alt,
      id,
      lang
    } = structElement
    if (alt !== undefined) {
      let added = false
      const label = removeNullCharacters(alt)
      for (const child of structElement.children) {
        if (child.type === "annotation") {
          let attrs = this.#elementAttributes.get(child.id)
          if (!attrs) {
            attrs = new Map()
            this.#elementAttributes.set(child.id, attrs)
          }
          attrs.set("aria-label", label)
          added = true
        }
      }
      if (!added) {
        htmlElement.setAttribute("aria-label", label)
      }
    }
    if (id !== undefined) {
      htmlElement.setAttribute("aria-owns", id)
    }
    if (lang !== undefined) {
      htmlElement.setAttribute("lang", removeNullCharacters(lang, true))
    }
  }
  #addImageInTextLayer (node, element) {
    const {
      alt,
      bbox,
      children
    } = node
    const child = children?.[0]
    if (!this.#rawDims || !alt || !bbox || child?.type !== "content") {
      return false
    }
    const {
      id
    } = child
    if (!id) {
      return false
    }
    element.setAttribute("aria-owns", id)
    const img = document.createElement("span");
    (this.#elementsToAddToTextLayer ||= new Map()).set(id, img)
    img.setAttribute("role", "img")
    img.setAttribute("aria-label", removeNullCharacters(alt))
    const {
      pageHeight,
      pageX,
      pageY
    } = this.#rawDims
    const calc = "calc(var(--scale-factor)*"
    const {
      style
    } = img
    style.width = `${calc}${bbox[2] - bbox[0]}px)`
    style.height = `${calc}${bbox[3] - bbox[1]}px)`
    style.left = `${calc}${bbox[0] - pageX}px)`
    style.top = `${calc}${pageHeight - bbox[3] + pageY}px)`
    return true
  }
  addElementsToTextLayer () {
    if (!this.#elementsToAddToTextLayer) {
      return
    }
    for (const [id, img] of this.#elementsToAddToTextLayer) {
      document.getElementById(id)?.append(img)
    }
    this.#elementsToAddToTextLayer.clear()
    this.#elementsToAddToTextLayer = null
  }
  #walk (node) {
    if (!node) {
      return null
    }
    const element = document.createElement("span")
    if ("role" in node) {
      const {
        role
      } = node
      const match = role.match(HEADING_PATTERN)
      if (match) {
        element.setAttribute("role", "heading")
        element.setAttribute("aria-level", match[1])
      } else if (PDF_ROLE_TO_HTML_ROLE[role]) {
        element.setAttribute("role", PDF_ROLE_TO_HTML_ROLE[role])
      }
      if (role === "Figure" && this.#addImageInTextLayer(node, element)) {
        return element
      }
    }
    this.#setAttributes(node, element)
    if (node.children) {
      if (node.children.length === 1 && "id" in node.children[0]) {
        this.#setAttributes(node.children[0], element)
      } else {
        for (const kid of node.children) {
          element.append(this.#walk(kid))
        }
      }
    }
    return element
  }
}

;// ./web/text_accessibility.js

class TextAccessibilityManager {
  #enabled = false;
  #textChildren = null;
  #textNodes = new Map();
  #waitingElements = new Map();
  setTextMapping (textDivs) {
    this.#textChildren = textDivs
  }
  static #compareElementPositions (e1, e2) {
    const rect1 = e1.getBoundingClientRect()
    const rect2 = e2.getBoundingClientRect()
    if (rect1.width === 0 && rect1.height === 0) {
      return +1
    }
    if (rect2.width === 0 && rect2.height === 0) {
      return -1
    }
    const top1 = rect1.y
    const bot1 = rect1.y + rect1.height
    const mid1 = rect1.y + rect1.height / 2
    const top2 = rect2.y
    const bot2 = rect2.y + rect2.height
    const mid2 = rect2.y + rect2.height / 2
    if (mid1 <= top2 && mid2 >= bot1) {
      return -1
    }
    if (mid2 <= top1 && mid1 >= bot2) {
      return +1
    }
    const centerX1 = rect1.x + rect1.width / 2
    const centerX2 = rect2.x + rect2.width / 2
    return centerX1 - centerX2
  }
  enable () {
    if (this.#enabled) {
      throw new Error("TextAccessibilityManager is already enabled.")
    }
    if (!this.#textChildren) {
      throw new Error("Text divs and strings have not been set.")
    }
    this.#enabled = true
    this.#textChildren = this.#textChildren.slice()
    this.#textChildren.sort(TextAccessibilityManager.#compareElementPositions)
    if (this.#textNodes.size > 0) {
      const textChildren = this.#textChildren
      for (const [id, nodeIndex] of this.#textNodes) {
        const element = document.getElementById(id)
        if (!element) {
          this.#textNodes.delete(id)
          continue
        }
        this.#addIdToAriaOwns(id, textChildren[nodeIndex])
      }
    }
    for (const [element, isRemovable] of this.#waitingElements) {
      this.addPointerInTextLayer(element, isRemovable)
    }
    this.#waitingElements.clear()
  }
  disable () {
    if (!this.#enabled) {
      return
    }
    this.#waitingElements.clear()
    this.#textChildren = null
    this.#enabled = false
  }
  removePointerInTextLayer (element) {
    if (!this.#enabled) {
      this.#waitingElements.delete(element)
      return
    }
    const children = this.#textChildren
    if (!children || children.length === 0) {
      return
    }
    const {
      id
    } = element
    const nodeIndex = this.#textNodes.get(id)
    if (nodeIndex === undefined) {
      return
    }
    const node = children[nodeIndex]
    this.#textNodes.delete(id)
    let owns = node.getAttribute("aria-owns")
    if (owns?.includes(id)) {
      owns = owns.split(" ").filter(x => x !== id).join(" ")
      if (owns) {
        node.setAttribute("aria-owns", owns)
      } else {
        node.removeAttribute("aria-owns")
        node.setAttribute("role", "presentation")
      }
    }
  }
  #addIdToAriaOwns (id, node) {
    const owns = node.getAttribute("aria-owns")
    if (!owns?.includes(id)) {
      node.setAttribute("aria-owns", owns ? `${owns} ${id}` : id)
    }
    node.removeAttribute("role")
  }
  addPointerInTextLayer (element, isRemovable) {
    const {
      id
    } = element
    if (!id) {
      return null
    }
    if (!this.#enabled) {
      this.#waitingElements.set(element, isRemovable)
      return null
    }
    if (isRemovable) {
      this.removePointerInTextLayer(element)
    }
    const children = this.#textChildren
    if (!children || children.length === 0) {
      return null
    }
    const index = binarySearchFirstItem(children, node => TextAccessibilityManager.#compareElementPositions(element, node) < 0)
    const nodeIndex = Math.max(0, index - 1)
    const child = children[nodeIndex]
    this.#addIdToAriaOwns(id, child)
    this.#textNodes.set(id, nodeIndex)
    const parent = child.parentNode
    return parent?.classList.contains("markedContent") ? parent.id : null
  }
  moveElementInDOM (container, element, contentElement, isRemovable) {
    const id = this.addPointerInTextLayer(contentElement, isRemovable)
    if (!container.hasChildNodes()) {
      container.append(element)
      return id
    }
    const children = Array.from(container.childNodes).filter(node => node !== element)
    if (children.length === 0) {
      return id
    }
    const elementToCompare = contentElement || element
    const index = binarySearchFirstItem(children, node => TextAccessibilityManager.#compareElementPositions(elementToCompare, node) < 0)
    if (index === 0) {
      children[0].before(element)
    } else {
      children[index - 1].after(element)
    }
    return id
  }
}

;// ./web/text_highlighter.js
class TextHighlighter {
  #eventAbortController = null;
  constructor({
    findController,
    eventBus,
    pageIndex
  }) {
    this.findController = findController
    this.matches = []
    this.eventBus = eventBus
    this.pageIdx = pageIndex
    this.textDivs = null
    this.textContentItemsStr = null
    this.enabled = false
  }
  setTextMapping (divs, texts) {
    this.textDivs = divs
    this.textContentItemsStr = texts
  }
  enable () {
    if (!this.textDivs || !this.textContentItemsStr) {
      throw new Error("Text divs and strings have not been set.")
    }
    if (this.enabled) {
      throw new Error("TextHighlighter is already enabled.")
    }
    this.enabled = true
    if (!this.#eventAbortController) {
      this.#eventAbortController = new AbortController()
      this.eventBus._on("updatetextlayermatches", evt => {
        if (evt.pageIndex === this.pageIdx || evt.pageIndex === -1) {
          this._updateMatches()
        }
      }, {
        signal: this.#eventAbortController.signal
      })
    }
    this._updateMatches()
  }
  disable () {
    if (!this.enabled) {
      return
    }
    this.enabled = false
    this.#eventAbortController?.abort()
    this.#eventAbortController = null
    this._updateMatches(true)
  }
  _convertMatches (matches, matchesLength) {
    if (!matches) {
      return []
    }
    const {
      textContentItemsStr
    } = this
    let i = 0,
      iIndex = 0
    const end = textContentItemsStr.length - 1
    const result = []
    for (let m = 0, mm = matches.length; m < mm; m++) {
      let matchIdx = matches[m]
      while (i !== end && matchIdx >= iIndex + textContentItemsStr[i].length) {
        iIndex += textContentItemsStr[i].length
        i++
      }
      if (i === textContentItemsStr.length) {
        console.error("Could not find a matching mapping")
      }
      const match = {
        begin: {
          divIdx: i,
          offset: matchIdx - iIndex
        }
      }
      matchIdx += matchesLength[m]
      while (i !== end && matchIdx > iIndex + textContentItemsStr[i].length) {
        iIndex += textContentItemsStr[i].length
        i++
      }
      match.end = {
        divIdx: i,
        offset: matchIdx - iIndex
      }
      result.push(match)
    }
    return result
  }
  _renderMatches (matches) {
    if (matches.length === 0) {
      return
    }
    const {
      findController,
      pageIdx
    } = this
    const {
      textContentItemsStr,
      textDivs
    } = this
    const isSelectedPage = pageIdx === findController.selected.pageIdx
    const selectedMatchIdx = findController.selected.matchIdx
    const highlightAll = findController.state.highlightAll
    let prevEnd = null
    const infinity = {
      divIdx: -1,
      offset: undefined
    }
    function beginText (begin, className) {
      const divIdx = begin.divIdx
      textDivs[divIdx].textContent = ""
      return appendTextToDiv(divIdx, 0, begin.offset, className)
    }
    function appendTextToDiv (divIdx, fromOffset, toOffset, className) {
      let div = textDivs[divIdx]
      if (div.nodeType === Node.TEXT_NODE) {
        const span = document.createElement("span")
        div.before(span)
        span.append(div)
        textDivs[divIdx] = span
        div = span
      }
      const content = textContentItemsStr[divIdx].substring(fromOffset, toOffset)
      const node = document.createTextNode(content)
      if (className) {
        const span = document.createElement("span")
        span.className = `${className} appended`
        span.append(node)
        div.append(span)
        if (className.includes("selected")) {
          const {
            left
          } = span.getClientRects()[0]
          const parentLeft = div.getBoundingClientRect().left
          return left - parentLeft
        }
        return 0
      }
      div.append(node)
      return 0
    }
    let i0 = selectedMatchIdx,
      i1 = i0 + 1
    if (highlightAll) {
      i0 = 0
      i1 = matches.length
    } else if (!isSelectedPage) {
      return
    }
    let lastDivIdx = -1
    let lastOffset = -1
    for (let i = i0; i < i1; i++) {
      const match = matches[i]
      const begin = match.begin
      if (begin.divIdx === lastDivIdx && begin.offset === lastOffset) {
        continue
      }
      lastDivIdx = begin.divIdx
      lastOffset = begin.offset
      const end = match.end
      const isSelected = isSelectedPage && i === selectedMatchIdx
      const highlightSuffix = isSelected ? " selected" : ""
      let selectedLeft = 0
      if (!prevEnd || begin.divIdx !== prevEnd.divIdx) {
        if (prevEnd !== null) {
          appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset)
        }
        beginText(begin)
      } else {
        appendTextToDiv(prevEnd.divIdx, prevEnd.offset, begin.offset)
      }
      if (begin.divIdx === end.divIdx) {
        selectedLeft = appendTextToDiv(begin.divIdx, begin.offset, end.offset, "highlight" + highlightSuffix)
      } else {
        selectedLeft = appendTextToDiv(begin.divIdx, begin.offset, infinity.offset, "highlight begin" + highlightSuffix)
        for (let n0 = begin.divIdx + 1, n1 = end.divIdx; n0 < n1; n0++) {
          textDivs[n0].className = "highlight middle" + highlightSuffix
        }
        beginText(end, "highlight end" + highlightSuffix)
      }
      prevEnd = end
      if (isSelected) {
        findController.scrollMatchIntoView({
          element: textDivs[begin.divIdx],
          selectedLeft,
          pageIndex: pageIdx,
          matchIndex: selectedMatchIdx
        })
      }
    }
    if (prevEnd) {
      appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset)
    }
  }
  _updateMatches (reset = false) {
    if (!this.enabled && !reset) {
      return
    }
    const {
      findController,
      matches,
      pageIdx
    } = this
    const {
      textContentItemsStr,
      textDivs
    } = this
    let clearedUntilDivIdx = -1
    for (const match of matches) {
      const begin = Math.max(clearedUntilDivIdx, match.begin.divIdx)
      for (let n = begin, end = match.end.divIdx; n <= end; n++) {
        const div = textDivs[n]
        div.textContent = textContentItemsStr[n]
        div.className = ""
      }
      clearedUntilDivIdx = match.end.divIdx + 1
    }
    if (!findController?.highlightMatches || reset) {
      return
    }
    const pageMatches = findController.pageMatches[pageIdx] || null
    const pageMatchesLength = findController.pageMatchesLength[pageIdx] || null
    this.matches = this._convertMatches(pageMatches, pageMatchesLength)
    this._renderMatches(this.matches)
  }
}

;// ./web/text_layer_builder.js


class TextLayerBuilder {
  #enablePermissions = false;
  #onAppend = null;
  #renderingDone = false;
  #textLayer = null;
  static #textLayers = new Map();
  static #selectionChangeAbortController = null;
  constructor({
    pdfPage,
    highlighter = null,
    accessibilityManager = null,
    enablePermissions = false,
    onAppend = null
  }) {
    this.pdfPage = pdfPage
    this.highlighter = highlighter
    this.accessibilityManager = accessibilityManager
    this.#enablePermissions = enablePermissions === true
    this.#onAppend = onAppend
    this.div = document.createElement("div")
    this.div.tabIndex = 0
    this.div.className = "textLayer"
  }
  async render (viewport, textContentParams = null) {
    if (this.#renderingDone && this.#textLayer) {
      this.#textLayer.update({
        viewport,
        onBefore: this.hide.bind(this)
      })
      this.show()
      return
    }
    this.cancel()
    this.#textLayer = new TextLayer({
      textContentSource: this.pdfPage.streamTextContent(textContentParams || {
        includeMarkedContent: true,
        disableNormalization: true
      }),
      container: this.div,
      viewport
    })
    const {
      textDivs,
      textContentItemsStr
    } = this.#textLayer
    this.highlighter?.setTextMapping(textDivs, textContentItemsStr)
    this.accessibilityManager?.setTextMapping(textDivs)
    await this.#textLayer.render()
    this.#renderingDone = true
    const endOfContent = document.createElement("div")
    endOfContent.className = "endOfContent"
    this.div.append(endOfContent)
    this.#bindMouse(endOfContent)
    this.#onAppend?.(this.div)
    this.highlighter?.enable()
    this.accessibilityManager?.enable()
  }
  hide () {
    if (!this.div.hidden && this.#renderingDone) {
      this.highlighter?.disable()
      this.div.hidden = true
    }
  }
  show () {
    if (this.div.hidden && this.#renderingDone) {
      this.div.hidden = false
      this.highlighter?.enable()
    }
  }
  cancel () {
    this.#textLayer?.cancel()
    this.#textLayer = null
    this.highlighter?.disable()
    this.accessibilityManager?.disable()
    TextLayerBuilder.#removeGlobalSelectionListener(this.div)
  }
  #bindMouse (end) {
    const {
      div
    } = this
    div.addEventListener("mousedown", () => {
      div.classList.add("selecting")
    })
    div.addEventListener("copy", event => {
      if (!this.#enablePermissions) {
        const selection = document.getSelection()
        event.clipboardData.setData("text/plain", removeNullCharacters(normalizeUnicode(selection.toString())))
      }
      stopEvent(event)
    })
    TextLayerBuilder.#textLayers.set(div, end)
    TextLayerBuilder.#enableGlobalSelectionListener()
  }
  static #removeGlobalSelectionListener (textLayerDiv) {
    this.#textLayers.delete(textLayerDiv)
    if (this.#textLayers.size === 0) {
      this.#selectionChangeAbortController?.abort()
      this.#selectionChangeAbortController = null
    }
  }
  static #enableGlobalSelectionListener () {
    if (this.#selectionChangeAbortController) {
      return
    }
    this.#selectionChangeAbortController = new AbortController()
    const {
      signal
    } = this.#selectionChangeAbortController
    const reset = (end, textLayer) => {
      textLayer.append(end)
      end.style.width = ""
      end.style.height = ""
      textLayer.classList.remove("selecting")
    }
    let isPointerDown = false
    document.addEventListener("pointerdown", () => {
      isPointerDown = true
    }, {
      signal
    })
    document.addEventListener("pointerup", () => {
      isPointerDown = false
      this.#textLayers.forEach(reset)
    }, {
      signal
    })
    window.addEventListener("blur", () => {
      isPointerDown = false
      this.#textLayers.forEach(reset)
    }, {
      signal
    })
    document.addEventListener("keyup", () => {
      if (!isPointerDown) {
        this.#textLayers.forEach(reset)
      }
    }, {
      signal
    })
    var isFirefox, prevRange
    document.addEventListener("selectionchange", () => {
      const selection = document.getSelection()
      if (selection.rangeCount === 0) {
        this.#textLayers.forEach(reset)
        return
      }
      const activeTextLayers = new Set()
      for (let i = 0; i < selection.rangeCount; i++) {
        const range = selection.getRangeAt(i)
        for (const textLayerDiv of this.#textLayers.keys()) {
          if (!activeTextLayers.has(textLayerDiv) && range.intersectsNode(textLayerDiv)) {
            activeTextLayers.add(textLayerDiv)
          }
        }
      }
      for (const [textLayerDiv, endDiv] of this.#textLayers) {
        if (activeTextLayers.has(textLayerDiv)) {
          textLayerDiv.classList.add("selecting")
        } else {
          reset(endDiv, textLayerDiv)
        }
      }
      isFirefox ??= getComputedStyle(this.#textLayers.values().next().value).getPropertyValue("-moz-user-select") === "none"
      if (isFirefox) {
        return
      }
      const range = selection.getRangeAt(0)
      const modifyStart = prevRange && (range.compareBoundaryPoints(Range.END_TO_END, prevRange) === 0 || range.compareBoundaryPoints(Range.START_TO_END, prevRange) === 0)
      let anchor = modifyStart ? range.startContainer : range.endContainer
      if (anchor.nodeType === Node.TEXT_NODE) {
        anchor = anchor.parentNode
      }
      const parentTextLayer = anchor.parentElement?.closest(".textLayer")
      const endDiv = this.#textLayers.get(parentTextLayer)
      if (endDiv) {
        endDiv.style.width = parentTextLayer.style.width
        endDiv.style.height = parentTextLayer.style.height
        anchor.parentElement.insertBefore(endDiv, modifyStart ? anchor : anchor.nextSibling)
      }
      prevRange = range.cloneRange()
    }, {
      signal
    })
  }
}

;// ./web/pdf_page_view.js













const DEFAULT_LAYER_PROPERTIES = null
const LAYERS_ORDER = new Map([["canvasWrapper", 0], ["textLayer", 1], ["annotationLayer", 2], ["annotationEditorLayer", 3], ["xfaLayer", 3]])
class PDFPageView {
  #annotationMode = AnnotationMode.ENABLE_FORMS;
  #canvasWrapper = null;
  #enableHWA = false;
  #hasRestrictedScaling = false;
  #isEditing = false;
  #layerProperties = null;
  #loadingId = null;
  #originalViewport = null;
  #previousRotation = null;
  #scaleRoundX = 1;
  #scaleRoundY = 1;
  #renderError = null;
  #renderingState = RenderingStates.INITIAL;
  #textLayerMode = TextLayerMode.ENABLE;
  #useThumbnailCanvas = {
    directDrawing: true,
    initialOptionalContent: true,
    regularAnnotations: true
  };
  #layers = [null, null, null, null];
  constructor(options) {
    const container = options.container
    const defaultViewport = options.defaultViewport
    this.id = options.id
    this.renderingId = "page" + this.id
    this.#layerProperties = options.layerProperties || DEFAULT_LAYER_PROPERTIES
    this.pdfPage = null
    this.pageLabel = null
    this.rotation = 0
    this.scale = options.scale || DEFAULT_SCALE
    this.viewport = defaultViewport
    this.pdfPageRotate = defaultViewport.rotation
    this._optionalContentConfigPromise = options.optionalContentConfigPromise || null
    this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE
    this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS
    this.imageResourcesPath = options.imageResourcesPath || ""
    this.maxCanvasPixels = options.maxCanvasPixels ?? AppOptions.get("maxCanvasPixels")
    this.pageColors = options.pageColors || null
    this.#enableHWA = options.enableHWA || false
    this.eventBus = options.eventBus
    this.renderingQueue = options.renderingQueue
    this.l10n = options.l10n
    this.l10n ||= new genericl10n_GenericL10n()
    this.renderTask = null
    this.resume = null
    this._isStandalone = !this.renderingQueue?.hasViewer()
    this._container = container
    this._annotationCanvasMap = null
    this.annotationLayer = null
    this.annotationEditorLayer = null
    this.textLayer = null
    this.xfaLayer = null
    this.structTreeLayer = null
    this.drawLayer = null
    const div = document.createElement("div")
    div.className = "page"
    div.setAttribute("data-page-number", this.id)
    div.setAttribute("role", "region")
    div.setAttribute("data-l10n-id", "pdfjs-page-landmark")
    div.setAttribute("data-l10n-args", JSON.stringify({
      page: this.id
    }))
    this.div = div
    this.#setDimensions()
    container?.append(div)
    if (this._isStandalone) {
      container?.style.setProperty("--scale-factor", this.scale * PixelsPerInch.PDF_TO_CSS_UNITS)
      if (this.pageColors?.background) {
        container?.style.setProperty("--page-bg-color", this.pageColors.background)
      }
      const {
        optionalContentConfigPromise
      } = options
      if (optionalContentConfigPromise) {
        optionalContentConfigPromise.then(optionalContentConfig => {
          if (optionalContentConfigPromise !== this._optionalContentConfigPromise) {
            return
          }
          this.#useThumbnailCanvas.initialOptionalContent = optionalContentConfig.hasInitialVisibility
        })
      }
      if (!options.l10n) {
        this.l10n.translate(this.div)
      }
    }
  }
  #addLayer (div, name) {
    const pos = LAYERS_ORDER.get(name)
    const oldDiv = this.#layers[pos]
    this.#layers[pos] = div
    if (oldDiv) {
      oldDiv.replaceWith(div)
      return
    }
    for (let i = pos - 1; i >= 0; i--) {
      const layer = this.#layers[i]
      if (layer) {
        layer.after(div)
        return
      }
    }
    this.div.prepend(div)
  }
  get renderingState () {
    return this.#renderingState
  }
  set renderingState (state) {
    if (state === this.#renderingState) {
      return
    }
    this.#renderingState = state
    if (this.#loadingId) {
      clearTimeout(this.#loadingId)
      this.#loadingId = null
    }
    switch (state) {
      case RenderingStates.PAUSED:
        this.div.classList.remove("loading")
        break
      case RenderingStates.RUNNING:
        this.div.classList.add("loadingIcon")
        this.#loadingId = setTimeout(() => {
          this.div.classList.add("loading")
          this.#loadingId = null
        }, 0)
        break
      case RenderingStates.INITIAL:
      case RenderingStates.FINISHED:
        this.div.classList.remove("loadingIcon", "loading")
        break
    }
  }
  #setDimensions () {
    const {
      viewport
    } = this
    if (this.pdfPage) {
      if (this.#previousRotation === viewport.rotation) {
        return
      }
      this.#previousRotation = viewport.rotation
    }
    setLayerDimensions(this.div, viewport, true, false)
  }
  setPdfPage (pdfPage) {
    if (this._isStandalone && (this.pageColors?.foreground === "CanvasText" || this.pageColors?.background === "Canvas")) {
      this._container?.style.setProperty("--hcm-highlight-filter", pdfPage.filterFactory.addHighlightHCMFilter("highlight", "CanvasText", "Canvas", "HighlightText", "Highlight"))
      this._container?.style.setProperty("--hcm-highlight-selected-filter", pdfPage.filterFactory.addHighlightHCMFilter("highlight_selected", "CanvasText", "Canvas", "HighlightText", "Highlight"))
    }
    this.pdfPage = pdfPage
    this.pdfPageRotate = pdfPage.rotate
    const totalRotation = (this.rotation + this.pdfPageRotate) % 360
    this.viewport = pdfPage.getViewport({
      scale: this.scale * PixelsPerInch.PDF_TO_CSS_UNITS,
      rotation: totalRotation
    })
    this.#setDimensions()
    this.reset()
  }
  destroy () {
    this.reset()
    this.pdfPage?.cleanup()
  }
  hasEditableAnnotations () {
    return !!this.annotationLayer?.hasEditableAnnotations()
  }
  get _textHighlighter () {
    return shadow(this, "_textHighlighter", new TextHighlighter({
      pageIndex: this.id - 1,
      eventBus: this.eventBus,
      findController: this.#layerProperties.findController
    }))
  }
  #dispatchLayerRendered (name, error) {
    this.eventBus.dispatch(name, {
      source: this,
      pageNumber: this.id,
      error
    })
  }
  async #renderAnnotationLayer () {
    let error = null
    try {
      await this.annotationLayer.render(this.viewport, {
        structTreeLayer: this.structTreeLayer
      }, "display")
    } catch (ex) {
      console.error("#renderAnnotationLayer:", ex)
      error = ex
    } finally {
      this.#dispatchLayerRendered("annotationlayerrendered", error)
    }
  }
  async #renderAnnotationEditorLayer () {
    let error = null
    try {
      await this.annotationEditorLayer.render(this.viewport, "display")
    } catch (ex) {
      console.error("#renderAnnotationEditorLayer:", ex)
      error = ex
    } finally {
      this.#dispatchLayerRendered("annotationeditorlayerrendered", error)
    }
  }
  async #renderDrawLayer () {
    try {
      await this.drawLayer.render("display")
    } catch (ex) {
      console.error("#renderDrawLayer:", ex)
    }
  }
  async #renderXfaLayer () {
    let error = null
    try {
      const result = await this.xfaLayer.render(this.viewport, "display")
      if (result?.textDivs && this._textHighlighter) {
        this.#buildXfaTextContentItems(result.textDivs)
      }
    } catch (ex) {
      console.error("#renderXfaLayer:", ex)
      error = ex
    } finally {
      if (this.xfaLayer?.div) {
        this.l10n.pause()
        this.#addLayer(this.xfaLayer.div, "xfaLayer")
        this.l10n.resume()
      }
      this.#dispatchLayerRendered("xfalayerrendered", error)
    }
  }
  async #renderTextLayer () {
    if (!this.textLayer) {
      return
    }
    let error = null
    try {
      await this.textLayer.render(this.viewport)
    } catch (ex) {
      if (ex instanceof AbortException) {
        return
      }
      console.error("#renderTextLayer:", ex)
      error = ex
    }
    this.#dispatchLayerRendered("textlayerrendered", error)
    this.#renderStructTreeLayer()
  }
  async #renderStructTreeLayer () {
    if (!this.textLayer) {
      return
    }
    const treeDom = await this.structTreeLayer?.render()
    if (treeDom) {
      this.l10n.pause()
      this.structTreeLayer?.addElementsToTextLayer()
      if (this.canvas && treeDom.parentNode !== this.canvas) {
        this.canvas.append(treeDom)
      }
      this.l10n.resume()
    }
    this.structTreeLayer?.show()
  }
  async #buildXfaTextContentItems (textDivs) {
    const text = await this.pdfPage.getTextContent()
    const items = []
    for (const item of text.items) {
      items.push(item.str)
    }
    this._textHighlighter.setTextMapping(textDivs, items)
    this._textHighlighter.enable()
  }
  #resetCanvas () {
    const {
      canvas
    } = this
    if (!canvas) {
      return
    }
    canvas.remove()
    canvas.width = canvas.height = 0
    this.canvas = null
    this.#originalViewport = null
  }
  reset ({
    keepAnnotationLayer = false,
    keepAnnotationEditorLayer = false,
    keepXfaLayer = false,
    keepTextLayer = false,
    keepCanvasWrapper = false
  } = {}) {
    this.cancelRendering({
      keepAnnotationLayer,
      keepAnnotationEditorLayer,
      keepXfaLayer,
      keepTextLayer
    })
    this.renderingState = RenderingStates.INITIAL
    const div = this.div
    const childNodes = div.childNodes,
      annotationLayerNode = keepAnnotationLayer && this.annotationLayer?.div || null,
      annotationEditorLayerNode = keepAnnotationEditorLayer && this.annotationEditorLayer?.div || null,
      xfaLayerNode = keepXfaLayer && this.xfaLayer?.div || null,
      textLayerNode = keepTextLayer && this.textLayer?.div || null,
      canvasWrapperNode = keepCanvasWrapper && this.#canvasWrapper || null
    for (let i = childNodes.length - 1; i >= 0; i--) {
      const node = childNodes[i]
      switch (node) {
        case annotationLayerNode:
        case annotationEditorLayerNode:
        case xfaLayerNode:
        case textLayerNode:
        case canvasWrapperNode:
          continue
      }
      node.remove()
      const layerIndex = this.#layers.indexOf(node)
      if (layerIndex >= 0) {
        this.#layers[layerIndex] = null
      }
    }
    div.removeAttribute("data-loaded")
    if (annotationLayerNode) {
      this.annotationLayer.hide()
    }
    if (annotationEditorLayerNode) {
      this.annotationEditorLayer.hide()
    }
    if (xfaLayerNode) {
      this.xfaLayer.hide()
    }
    if (textLayerNode) {
      this.textLayer.hide()
    }
    this.structTreeLayer?.hide()
    if (!keepCanvasWrapper && this.#canvasWrapper) {
      this.#canvasWrapper = null
      this.#resetCanvas()
    }
  }
  toggleEditingMode (isEditing) {
    if (!this.hasEditableAnnotations()) {
      return
    }
    this.#isEditing = isEditing
    this.reset({
      keepAnnotationLayer: true,
      keepAnnotationEditorLayer: true,
      keepXfaLayer: true,
      keepTextLayer: true,
      keepCanvasWrapper: true
    })
  }
  update ({
    scale = 0,
    rotation = null,
    optionalContentConfigPromise = null,
    drawingDelay = -1
  }) {
    this.scale = scale || this.scale
    if (typeof rotation === "number") {
      this.rotation = rotation
    }
    if (optionalContentConfigPromise instanceof Promise) {
      this._optionalContentConfigPromise = optionalContentConfigPromise
      optionalContentConfigPromise.then(optionalContentConfig => {
        if (optionalContentConfigPromise !== this._optionalContentConfigPromise) {
          return
        }
        this.#useThumbnailCanvas.initialOptionalContent = optionalContentConfig.hasInitialVisibility
      })
    }
    this.#useThumbnailCanvas.directDrawing = true
    const totalRotation = (this.rotation + this.pdfPageRotate) % 360
    this.viewport = this.viewport.clone({
      scale: this.scale * PixelsPerInch.PDF_TO_CSS_UNITS,
      rotation: totalRotation
    })
    this.#setDimensions()
    if (this._isStandalone) {
      this._container?.style.setProperty("--scale-factor", this.viewport.scale)
    }
    if (this.canvas) {
      let onlyCssZoom = false
      if (this.#hasRestrictedScaling) {
        if (this.maxCanvasPixels === 0) {
          onlyCssZoom = true
        } else if (this.maxCanvasPixels > 0) {
          const {
            width,
            height
          } = this.viewport
          const {
            sx,
            sy
          } = this.outputScale
          onlyCssZoom = (Math.floor(width) * sx | 0) * (Math.floor(height) * sy | 0) > this.maxCanvasPixels
        }
      }
      const postponeDrawing = drawingDelay >= 0 && drawingDelay < 1000
      if (postponeDrawing || onlyCssZoom) {
        if (postponeDrawing && !onlyCssZoom && this.renderingState !== RenderingStates.FINISHED) {
          this.cancelRendering({
            keepAnnotationLayer: true,
            keepAnnotationEditorLayer: true,
            keepXfaLayer: true,
            keepTextLayer: true,
            cancelExtraDelay: drawingDelay
          })
          this.renderingState = RenderingStates.FINISHED
          this.#useThumbnailCanvas.directDrawing = false
        }
        this.cssTransform({
          redrawAnnotationLayer: true,
          redrawAnnotationEditorLayer: true,
          redrawXfaLayer: true,
          redrawTextLayer: !postponeDrawing,
          hideTextLayer: postponeDrawing
        })
        if (postponeDrawing) {
          return
        }
        this.eventBus.dispatch("pagerendered", {
          source: this,
          pageNumber: this.id,
          cssTransform: true,
          timestamp: performance.now(),
          error: this.#renderError
        })
        return
      }
    }
    this.cssTransform({})
    this.reset({
      keepAnnotationLayer: true,
      keepAnnotationEditorLayer: true,
      keepXfaLayer: true,
      keepTextLayer: true,
      keepCanvasWrapper: true
    })
  }
  cancelRendering ({
    keepAnnotationLayer = false,
    keepAnnotationEditorLayer = false,
    keepXfaLayer = false,
    keepTextLayer = false,
    cancelExtraDelay = 0
  } = {}) {
    if (this.renderTask) {
      this.renderTask.cancel(cancelExtraDelay)
      this.renderTask = null
    }
    this.resume = null
    if (this.textLayer && (!keepTextLayer || !this.textLayer.div)) {
      this.textLayer.cancel()
      this.textLayer = null
    }
    if (this.annotationLayer && (!keepAnnotationLayer || !this.annotationLayer.div)) {
      this.annotationLayer.cancel()
      this.annotationLayer = null
      this._annotationCanvasMap = null
    }
    if (this.structTreeLayer && !this.textLayer) {
      this.structTreeLayer = null
    }
    if (this.annotationEditorLayer && (!keepAnnotationEditorLayer || !this.annotationEditorLayer.div)) {
      if (this.drawLayer) {
        this.drawLayer.cancel()
        this.drawLayer = null
      }
      this.annotationEditorLayer.cancel()
      this.annotationEditorLayer = null
    }
    if (this.xfaLayer && (!keepXfaLayer || !this.xfaLayer.div)) {
      this.xfaLayer.cancel()
      this.xfaLayer = null
      this._textHighlighter?.disable()
    }
  }
  cssTransform ({
    redrawAnnotationLayer = false,
    redrawAnnotationEditorLayer = false,
    redrawXfaLayer = false,
    redrawTextLayer = false,
    hideTextLayer = false
  }) {
    const {
      canvas
    } = this
    if (!canvas) {
      return
    }
    const originalViewport = this.#originalViewport
    if (this.viewport !== originalViewport) {
      const relativeRotation = (360 + this.viewport.rotation - originalViewport.rotation) % 360
      if (relativeRotation === 90 || relativeRotation === 270) {
        const {
          width,
          height
        } = this.viewport
        const scaleX = height / width
        const scaleY = width / height
        canvas.style.transform = `rotate(${relativeRotation}deg) scale(${scaleX},${scaleY})`
      } else {
        canvas.style.transform = relativeRotation === 0 ? "" : `rotate(${relativeRotation}deg)`
      }
    }
    if (redrawAnnotationLayer && this.annotationLayer) {
      this.#renderAnnotationLayer()
    }
    if (redrawAnnotationEditorLayer && this.annotationEditorLayer) {
      if (this.drawLayer) {
        this.#renderDrawLayer()
      }
      this.#renderAnnotationEditorLayer()
    }
    if (redrawXfaLayer && this.xfaLayer) {
      this.#renderXfaLayer()
    }
    if (this.textLayer) {
      if (hideTextLayer) {
        this.textLayer.hide()
        this.structTreeLayer?.hide()
      } else if (redrawTextLayer) {
        this.#renderTextLayer()
      }
    }
  }
  get width () {
    return this.viewport.width
  }
  get height () {
    return this.viewport.height
  }
  getPagePoint (x, y) {
    return this.viewport.convertToPdfPoint(x, y)
  }
  async #finishRenderTask (renderTask, error = null) {
    if (renderTask === this.renderTask) {
      this.renderTask = null
    }
    if (error instanceof RenderingCancelledException) {
      this.#renderError = null
      return
    }
    this.#renderError = error
    this.renderingState = RenderingStates.FINISHED
    this.#useThumbnailCanvas.regularAnnotations = !renderTask.separateAnnots
    this.eventBus.dispatch("pagerendered", {
      source: this,
      pageNumber: this.id,
      cssTransform: false,
      timestamp: performance.now(),
      error: this.#renderError
    })
    if (error) {
      throw error
    }
  }
  async draw () {
    if (this.renderingState !== RenderingStates.INITIAL) {
      console.error("Must be in new state before drawing")
      this.reset()
    }
    const {
      div,
      l10n,
      pageColors,
      pdfPage,
      viewport
    } = this
    if (!pdfPage) {
      this.renderingState = RenderingStates.FINISHED
      throw new Error("pdfPage is not loaded")
    }
    this.renderingState = RenderingStates.RUNNING
    let canvasWrapper = this.#canvasWrapper
    if (!canvasWrapper) {
      canvasWrapper = this.#canvasWrapper = document.createElement("div")
      canvasWrapper.classList.add("canvasWrapper")
      this.#addLayer(canvasWrapper, "canvasWrapper")
    }
    if (!this.textLayer && this.#textLayerMode !== TextLayerMode.DISABLE && !pdfPage.isPureXfa) {
      this._accessibilityManager ||= new TextAccessibilityManager()
      this.textLayer = new TextLayerBuilder({
        pdfPage,
        highlighter: this._textHighlighter,
        accessibilityManager: this._accessibilityManager,
        enablePermissions: this.#textLayerMode === TextLayerMode.ENABLE_PERMISSIONS,
        onAppend: textLayerDiv => {
          this.l10n.pause()
          this.#addLayer(textLayerDiv, "textLayer")
          this.l10n.resume()
        }
      })
    }
    if (!this.annotationLayer && this.#annotationMode !== AnnotationMode.DISABLE) {
      const {
        annotationStorage,
        annotationEditorUIManager,
        downloadManager,
        enableScripting,
        fieldObjectsPromise,
        hasJSActionsPromise,
        linkService
      } = this.#layerProperties
      this._annotationCanvasMap ||= new Map()
      this.annotationLayer = new AnnotationLayerBuilder({
        pdfPage,
        annotationStorage,
        imageResourcesPath: this.imageResourcesPath,
        renderForms: this.#annotationMode === AnnotationMode.ENABLE_FORMS,
        linkService,
        downloadManager,
        enableScripting,
        hasJSActionsPromise,
        fieldObjectsPromise,
        annotationCanvasMap: this._annotationCanvasMap,
        accessibilityManager: this._accessibilityManager,
        annotationEditorUIManager,
        onAppend: annotationLayerDiv => {
          this.#addLayer(annotationLayerDiv, "annotationLayer")
        }
      })
    }
    const renderContinueCallback = cont => {
      showCanvas?.(false)
      if (this.renderingQueue && !this.renderingQueue.isHighestPriority(this)) {
        this.renderingState = RenderingStates.PAUSED
        this.resume = () => {
          this.renderingState = RenderingStates.RUNNING
          cont()
        }
        return
      }
      cont()
    }
    const {
      width,
      height
    } = viewport
    const canvas = document.createElement("canvas")
    canvas.setAttribute("role", "presentation")
    const hasHCM = !!(pageColors?.background && pageColors?.foreground)
    const prevCanvas = this.canvas
    const updateOnFirstShow = !prevCanvas && !hasHCM
    this.canvas = canvas
    this.#originalViewport = viewport
    let showCanvas = isLastShow => {
      if (updateOnFirstShow) {
        canvasWrapper.prepend(canvas)
        showCanvas = null
        return
      }
      if (!isLastShow) {
        return
      }
      if (prevCanvas) {
        prevCanvas.replaceWith(canvas)
        prevCanvas.width = prevCanvas.height = 0
      } else {
        canvasWrapper.prepend(canvas)
      }
      showCanvas = null
    }
    const ctx = canvas.getContext("2d", {
      alpha: false,
      willReadFrequently: !this.#enableHWA
    })
    const outputScale = this.outputScale = new OutputScale()
    if (this.maxCanvasPixels === 0) {
      const invScale = 1 / this.scale
      outputScale.sx *= invScale
      outputScale.sy *= invScale
      this.#hasRestrictedScaling = true
    } else if (this.maxCanvasPixels > 0) {
      const pixelsInViewport = width * height
      const maxScale = Math.sqrt(this.maxCanvasPixels / pixelsInViewport)
      if (outputScale.sx > maxScale || outputScale.sy > maxScale) {
        outputScale.sx = maxScale
        outputScale.sy = maxScale
        this.#hasRestrictedScaling = true
      } else {
        this.#hasRestrictedScaling = false
      }
    }
    const sfx = approximateFraction(outputScale.sx)
    const sfy = approximateFraction(outputScale.sy)
    const canvasWidth = canvas.width = floorToDivide(calcRound(width * outputScale.sx), sfx[0])
    const canvasHeight = canvas.height = floorToDivide(calcRound(height * outputScale.sy), sfy[0])
    const pageWidth = floorToDivide(calcRound(width), sfx[1])
    const pageHeight = floorToDivide(calcRound(height), sfy[1])
    outputScale.sx = canvasWidth / pageWidth
    outputScale.sy = canvasHeight / pageHeight
    if (this.#scaleRoundX !== sfx[1]) {
      div.style.setProperty("--scale-round-x", `${sfx[1]}px`)
      this.#scaleRoundX = sfx[1]
    }
    if (this.#scaleRoundY !== sfy[1]) {
      div.style.setProperty("--scale-round-y", `${sfy[1]}px`)
      this.#scaleRoundY = sfy[1]
    }
    const transform = outputScale.scaled ? [outputScale.sx, 0, 0, outputScale.sy, 0, 0] : null
    const renderContext = {
      canvasContext: ctx,
      transform,
      viewport,
      annotationMode: this.#annotationMode,
      optionalContentConfigPromise: this._optionalContentConfigPromise,
      annotationCanvasMap: this._annotationCanvasMap,
      pageColors,
      isEditing: this.#isEditing
    }
    const renderTask = this.renderTask = pdfPage.render(renderContext)
    renderTask.onContinue = renderContinueCallback
    const resultPromise = renderTask.promise.then(async () => {
      showCanvas?.(true)
      await this.#finishRenderTask(renderTask)
      this.structTreeLayer ||= new StructTreeLayerBuilder(pdfPage, viewport.rawDims)
      this.#renderTextLayer()
      if (this.annotationLayer) {
        await this.#renderAnnotationLayer()
      }
      const {
        annotationEditorUIManager
      } = this.#layerProperties
      if (!annotationEditorUIManager) {
        return
      }
      this.drawLayer ||= new DrawLayerBuilder({
        pageIndex: this.id
      })
      await this.#renderDrawLayer()
      this.drawLayer.setParent(canvasWrapper)
      this.annotationEditorLayer ||= new AnnotationEditorLayerBuilder({
        uiManager: annotationEditorUIManager,
        pdfPage,
        l10n,
        structTreeLayer: this.structTreeLayer,
        accessibilityManager: this._accessibilityManager,
        annotationLayer: this.annotationLayer?.annotationLayer,
        textLayer: this.textLayer,
        drawLayer: this.drawLayer.getDrawLayer(),
        onAppend: annotationEditorLayerDiv => {
          this.#addLayer(annotationEditorLayerDiv, "annotationEditorLayer")
        }
      })
      this.#renderAnnotationEditorLayer()
    }, error => {
      if (!(error instanceof RenderingCancelledException)) {
        showCanvas?.(true)
      } else {
        prevCanvas?.remove()
        this.#resetCanvas()
      }
      return this.#finishRenderTask(renderTask, error)
    })
    if (pdfPage.isPureXfa) {
      if (!this.xfaLayer) {
        const {
          annotationStorage,
          linkService
        } = this.#layerProperties
        this.xfaLayer = new XfaLayerBuilder({
          pdfPage,
          annotationStorage,
          linkService
        })
      }
      this.#renderXfaLayer()
    }
    div.setAttribute("data-loaded", true)
    this.eventBus.dispatch("pagerender", {
      source: this,
      pageNumber: this.id
    })
    return resultPromise
  }
  setPageLabel (label) {
    this.pageLabel = typeof label === "string" ? label : null
    this.div.setAttribute("data-l10n-args", JSON.stringify({
      page: this.pageLabel ?? this.id
    }))
    if (this.pageLabel !== null) {
      this.div.setAttribute("data-page-label", this.pageLabel)
    } else {
      this.div.removeAttribute("data-page-label")
    }
  }
  get thumbnailCanvas () {
    const {
      directDrawing,
      initialOptionalContent,
      regularAnnotations
    } = this.#useThumbnailCanvas
    return directDrawing && initialOptionalContent && regularAnnotations ? this.canvas : null
  }
}

;// ./web/pdf_viewer.js






const DEFAULT_CACHE_SIZE = 10
const PagesCountLimit = {
  FORCE_SCROLL_MODE_PAGE: 10000,
  FORCE_LAZY_PAGE_INIT: 5000,
  PAUSE_EAGER_PAGE_INIT: 250
}
function isValidAnnotationEditorMode (mode) {
  return Object.values(AnnotationEditorType).includes(mode) && mode !== AnnotationEditorType.DISABLE
}
class PDFPageViewBuffer {
  #buf = new Set();
  #size = 0;
  constructor(size) {
    this.#size = size
  }
  push (view) {
    const buf = this.#buf
    if (buf.has(view)) {
      buf.delete(view)
    }
    buf.add(view)
    if (buf.size > this.#size) {
      this.#destroyFirstView()
    }
  }
  resize (newSize, idsToKeep = null) {
    this.#size = newSize
    const buf = this.#buf
    if (idsToKeep) {
      const ii = buf.size
      let i = 1
      for (const view of buf) {
        if (idsToKeep.has(view.id)) {
          buf.delete(view)
          buf.add(view)
        }
        if (++i > ii) {
          break
        }
      }
    }
    while (buf.size > this.#size) {
      this.#destroyFirstView()
    }
  }
  has (view) {
    return this.#buf.has(view)
  }
  [Symbol.iterator] () {
    return this.#buf.keys()
  }
  #destroyFirstView () {
    const firstView = this.#buf.keys().next().value
    firstView?.destroy()
    this.#buf.delete(firstView)
  }
}
class PDFViewer {
  #buffer = null;
  #altTextManager = null;
  #annotationEditorHighlightColors = null;
  #annotationEditorMode = AnnotationEditorType.NONE;
  #annotationEditorUIManager = null;
  #annotationMode = AnnotationMode.ENABLE_FORMS;
  #containerTopLeft = null;
  #editorUndoBar = null;
  #enableHWA = false;
  #enableHighlightFloatingButton = false;
  #enablePermissions = false;
  #enableUpdatedAddImage = false;
  #enableNewAltTextWhenAddingImage = false;
  #eventAbortController = null;
  #mlManager = null;
  #switchAnnotationEditorModeAC = null;
  #switchAnnotationEditorModeTimeoutId = null;
  #getAllTextInProgress = false;
  #hiddenCopyElement = null;
  #interruptCopyCondition = false;
  #previousContainerHeight = 0;
  #resizeObserver = new ResizeObserver(this.#resizeObserverCallback.bind(this));
  #scrollModePageState = null;
  #scaleTimeoutId = null;
  #supportsPinchToZoom = true;
  #textLayerMode = TextLayerMode.ENABLE;
  constructor(options) {
    const viewerVersion = "4.10.38"
    if (version !== viewerVersion) {
      throw new Error(`The API version "${version}" does not match the Viewer version "${viewerVersion}".`)
    }
    this.container = options.container
    this.viewer = options.viewer || options.container.firstElementChild
    if (this.container?.tagName !== "DIV" || this.viewer?.tagName !== "DIV") {
      throw new Error("Invalid `container` and/or `viewer` option.")
    }
    if (this.container.offsetParent && getComputedStyle(this.container).position !== "absolute") {
      throw new Error("The `container` must be absolutely positioned.")
    }
    this.#resizeObserver.observe(this.container)
    this.eventBus = options.eventBus
    this.linkService = options.linkService || new SimpleLinkService()
    this.downloadManager = options.downloadManager || null
    this.findController = options.findController || null
    this.#altTextManager = options.altTextManager || null
    this.#editorUndoBar = options.editorUndoBar || null
    if (this.findController) {
      this.findController.onIsPageVisible = pageNumber => this._getVisiblePages().ids.has(pageNumber)
    }
    this._scriptingManager = options.scriptingManager || null
    this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE
    this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS
    this.#annotationEditorMode = options.annotationEditorMode ?? AnnotationEditorType.NONE
    this.#annotationEditorHighlightColors = options.annotationEditorHighlightColors || null
    this.#enableHighlightFloatingButton = options.enableHighlightFloatingButton === true
    this.#enableUpdatedAddImage = options.enableUpdatedAddImage === true
    this.#enableNewAltTextWhenAddingImage = options.enableNewAltTextWhenAddingImage === true
    this.imageResourcesPath = options.imageResourcesPath || ""
    this.enablePrintAutoRotate = options.enablePrintAutoRotate || false
    this.removePageBorders = options.removePageBorders || false
    this.maxCanvasPixels = options.maxCanvasPixels
    this.l10n = options.l10n
    this.l10n ||= new genericl10n_GenericL10n()
    this.#enablePermissions = options.enablePermissions || false
    this.pageColors = options.pageColors || null
    this.#mlManager = options.mlManager || null
    this.#enableHWA = options.enableHWA || false
    this.#supportsPinchToZoom = options.supportsPinchToZoom !== false
    this.defaultRenderingQueue = !options.renderingQueue
    if (this.defaultRenderingQueue) {
      this.renderingQueue = new PDFRenderingQueue()
      this.renderingQueue.setViewer(this)
    } else {
      this.renderingQueue = options.renderingQueue
    }
    const {
      abortSignal
    } = options
    abortSignal?.addEventListener("abort", () => {
      this.#resizeObserver.disconnect()
      this.#resizeObserver = null
    }, {
      once: true
    })
    this.scroll = watchScroll(this.container, this._scrollUpdate.bind(this), abortSignal)
    this.presentationModeState = PresentationModeState.UNKNOWN
    this._resetView()
    if (this.removePageBorders) {
      this.viewer.classList.add("removePageBorders")
    }
    this.#updateContainerHeightCss()
    this.eventBus._on("thumbnailrendered", ({
      pageNumber,
      pdfPage
    }) => {
      const pageView = this._pages[pageNumber - 1]
      if (!this.#buffer.has(pageView)) {
        pdfPage?.cleanup()
      }
    })
    if (!options.l10n) {
      this.l10n.translate(this.container)
    }
  }
  get pagesCount () {
    return this._pages.length
  }
  getPageView (index) {
    return this._pages[index]
  }
  getCachedPageViews () {
    return new Set(this.#buffer)
  }
  get pageViewsReady () {
    return this._pages.every(pageView => pageView?.pdfPage)
  }
  get renderForms () {
    return this.#annotationMode === AnnotationMode.ENABLE_FORMS
  }
  get enableScripting () {
    return !!this._scriptingManager
  }
  get currentPageNumber () {
    return this._currentPageNumber
  }
  set currentPageNumber (val) {
    if (!Number.isInteger(val)) {
      throw new Error("Invalid page number.")
    }
    if (!this.pdfDocument) {
      return
    }
    if (!this._setCurrentPageNumber(val, true)) {
      console.error(`currentPageNumber: "${val}" is not a valid page.`)
    }
  }
  _setCurrentPageNumber (val, resetCurrentPageView = false) {
    if (this._currentPageNumber === val) {
      if (resetCurrentPageView) {
        this.#resetCurrentPageView()
      }
      return true
    }
    if (!(0 < val && val <= this.pagesCount)) {
      return false
    }
    const previous = this._currentPageNumber
    this._currentPageNumber = val
    this.eventBus.dispatch("pagechanging", {
      source: this,
      pageNumber: val,
      pageLabel: this._pageLabels?.[val - 1] ?? null,
      previous
    })
    if (resetCurrentPageView) {
      this.#resetCurrentPageView()
    }
    return true
  }
  get currentPageLabel () {
    return this._pageLabels?.[this._currentPageNumber - 1] ?? null
  }
  set currentPageLabel (val) {
    if (!this.pdfDocument) {
      return
    }
    let page = val | 0
    if (this._pageLabels) {
      const i = this._pageLabels.indexOf(val)
      if (i >= 0) {
        page = i + 1
      }
    }
    if (!this._setCurrentPageNumber(page, true)) {
      console.error(`currentPageLabel: "${val}" is not a valid page.`)
    }
  }
  get currentScale () {
    return this._currentScale !== UNKNOWN_SCALE ? this._currentScale : DEFAULT_SCALE
  }
  set currentScale (val) {
    if (isNaN(val)) {
      throw new Error("Invalid numeric scale.")
    }
    if (!this.pdfDocument) {
      return
    }
    this.#setScale(val, {
      noScroll: false
    })
  }
  get currentScaleValue () {
    return this._currentScaleValue
  }
  set currentScaleValue (val) {
    if (!this.pdfDocument) {
      return
    }
    this.#setScale(val, {
      noScroll: false
    })
  }
  get pagesRotation () {
    return this._pagesRotation
  }
  set pagesRotation (rotation) {
    if (!isValidRotation(rotation)) {
      throw new Error("Invalid pages rotation angle.")
    }
    if (!this.pdfDocument) {
      return
    }
    rotation %= 360
    if (rotation < 0) {
      rotation += 360
    }
    if (this._pagesRotation === rotation) {
      return
    }
    this._pagesRotation = rotation
    const pageNumber = this._currentPageNumber
    this.refresh(true, {
      rotation
    })
    if (this._currentScaleValue) {
      this.#setScale(this._currentScaleValue, {
        noScroll: true
      })
    }
    this.eventBus.dispatch("rotationchanging", {
      source: this,
      pagesRotation: rotation,
      pageNumber
    })
    if (this.defaultRenderingQueue) {
      this.update()
    }
  }
  get firstPagePromise () {
    return this.pdfDocument ? this._firstPageCapability.promise : null
  }
  get onePageRendered () {
    return this.pdfDocument ? this._onePageRenderedCapability.promise : null
  }
  get pagesPromise () {
    return this.pdfDocument ? this._pagesCapability.promise : null
  }
  get _layerProperties () {
    const self = this
    return shadow(this, "_layerProperties", {
      get annotationEditorUIManager () {
        return self.#annotationEditorUIManager
      },
      get annotationStorage () {
        return self.pdfDocument?.annotationStorage
      },
      get downloadManager () {
        return self.downloadManager
      },
      get enableScripting () {
        return !!self._scriptingManager
      },
      get fieldObjectsPromise () {
        return self.pdfDocument?.getFieldObjects()
      },
      get findController () {
        return self.findController
      },
      get hasJSActionsPromise () {
        return self.pdfDocument?.hasJSActions()
      },
      get linkService () {
        return self.linkService
      }
    })
  }
  #initializePermissions (permissions) {
    const params = {
      annotationEditorMode: this.#annotationEditorMode,
      annotationMode: this.#annotationMode,
      textLayerMode: this.#textLayerMode
    }
    if (!permissions) {
      return params
    }
    if (!permissions.includes(PermissionFlag.COPY) && this.#textLayerMode === TextLayerMode.ENABLE) {
      params.textLayerMode = TextLayerMode.ENABLE_PERMISSIONS
    }
    if (!permissions.includes(PermissionFlag.MODIFY_CONTENTS)) {
      params.annotationEditorMode = AnnotationEditorType.DISABLE
    }
    if (!permissions.includes(PermissionFlag.MODIFY_ANNOTATIONS) && !permissions.includes(PermissionFlag.FILL_INTERACTIVE_FORMS) && this.#annotationMode === AnnotationMode.ENABLE_FORMS) {
      params.annotationMode = AnnotationMode.ENABLE
    }
    return params
  }
  async #onePageRenderedOrForceFetch (signal) {
    if (document.visibilityState === "hidden" || !this.container.offsetParent || this._getVisiblePages().views.length === 0) {
      return
    }
    const hiddenCapability = Promise.withResolvers(),
      ac = new AbortController()
    document.addEventListener("visibilitychange", () => {
      if (document.visibilityState === "hidden") {
        hiddenCapability.resolve()
      }
    }, {
      signal: typeof AbortSignal.any === "function" ? AbortSignal.any([signal, ac.signal]) : signal
    })
    await Promise.race([this._onePageRenderedCapability.promise, hiddenCapability.promise])
    ac.abort()
  }
  async getAllText () {
    const texts = []
    const buffer = []
    for (let pageNum = 1, pagesCount = this.pdfDocument.numPages; pageNum <= pagesCount; ++pageNum) {
      if (this.#interruptCopyCondition) {
        return null
      }
      buffer.length = 0
      const page = await this.pdfDocument.getPage(pageNum)
      const {
        items
      } = await page.getTextContent()
      for (const item of items) {
        if (item.str) {
          buffer.push(item.str)
        }
        if (item.hasEOL) {
          buffer.push("\n")
        }
      }
      texts.push(removeNullCharacters(buffer.join("")))
    }
    return texts.join("\n")
  }
  #copyCallback (textLayerMode, event) {
    const selection = document.getSelection()
    const {
      focusNode,
      anchorNode
    } = selection
    if (anchorNode && focusNode && selection.containsNode(this.#hiddenCopyElement)) {
      if (this.#getAllTextInProgress || textLayerMode === TextLayerMode.ENABLE_PERMISSIONS) {
        stopEvent(event)
        return
      }
      this.#getAllTextInProgress = true
      const {
        classList
      } = this.viewer
      classList.add("copyAll")
      const ac = new AbortController()
      window.addEventListener("keydown", ev => this.#interruptCopyCondition = ev.key === "Escape", {
        signal: ac.signal
      })
      this.getAllText().then(async text => {
        if (text !== null) {
          await navigator.clipboard.writeText(text)
        }
      }).catch(reason => {
        console.warn(`Something goes wrong when extracting the text: ${reason.message}`)
      }).finally(() => {
        this.#getAllTextInProgress = false
        this.#interruptCopyCondition = false
        ac.abort()
        classList.remove("copyAll")
      })
      stopEvent(event)
    }
  }
  setDocument (pdfDocument) {
    if (this.pdfDocument) {
      this.eventBus.dispatch("pagesdestroy", {
        source: this
      })
      this._cancelRendering()
      this._resetView()
      this.findController?.setDocument(null)
      this._scriptingManager?.setDocument(null)
      this.#annotationEditorUIManager?.destroy()
      this.#annotationEditorUIManager = null
    }
    this.pdfDocument = pdfDocument
    if (!pdfDocument) {
      return
    }
    const pagesCount = pdfDocument.numPages
    const firstPagePromise = pdfDocument.getPage(1)
    const optionalContentConfigPromise = pdfDocument.getOptionalContentConfig({
      intent: "display"
    })
    const permissionsPromise = this.#enablePermissions ? pdfDocument.getPermissions() : Promise.resolve()
    const {
      eventBus,
      pageColors,
      viewer
    } = this
    this.#eventAbortController = new AbortController()
    const {
      signal
    } = this.#eventAbortController
    if (pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE) {
      console.warn("Forcing PAGE-scrolling for performance reasons, given the length of the document.")
      const mode = this._scrollMode = ScrollMode.PAGE
      eventBus.dispatch("scrollmodechanged", {
        source: this,
        mode
      })
    }
    this._pagesCapability.promise.then(() => {
      eventBus.dispatch("pagesloaded", {
        source: this,
        pagesCount
      })
    }, () => { })
    const onBeforeDraw = evt => {
      const pageView = this._pages[evt.pageNumber - 1]
      if (!pageView) {
        return
      }
      this.#buffer.push(pageView)
    }
    eventBus._on("pagerender", onBeforeDraw, {
      signal
    })
    const onAfterDraw = evt => {
      if (evt.cssTransform) {
        return
      }
      this._onePageRenderedCapability.resolve({
        timestamp: evt.timestamp
      })
      eventBus._off("pagerendered", onAfterDraw)
    }
    eventBus._on("pagerendered", onAfterDraw, {
      signal
    })
    Promise.all([firstPagePromise, permissionsPromise]).then(([firstPdfPage, permissions]) => {
      if (pdfDocument !== this.pdfDocument) {
        return
      }
      this._firstPageCapability.resolve(firstPdfPage)
      this._optionalContentConfigPromise = optionalContentConfigPromise
      const {
        annotationEditorMode,
        annotationMode,
        textLayerMode
      } = this.#initializePermissions(permissions)
      if (textLayerMode !== TextLayerMode.DISABLE) {
        const element = this.#hiddenCopyElement = document.createElement("div")
        element.id = "hiddenCopyElement"
        viewer.before(element)
      }
      if (typeof AbortSignal.any === "function" && annotationEditorMode !== AnnotationEditorType.DISABLE) {
        const mode = annotationEditorMode
        if (pdfDocument.isPureXfa) {
          console.warn("Warning: XFA-editing is not implemented.")
        } else if (isValidAnnotationEditorMode(mode)) {
          this.#annotationEditorUIManager = new AnnotationEditorUIManager(this.container, viewer, this.#altTextManager, eventBus, pdfDocument, pageColors, this.#annotationEditorHighlightColors, this.#enableHighlightFloatingButton, this.#enableUpdatedAddImage, this.#enableNewAltTextWhenAddingImage, this.#mlManager, this.#editorUndoBar, this.#supportsPinchToZoom)
          eventBus.dispatch("annotationeditoruimanager", {
            source: this,
            uiManager: this.#annotationEditorUIManager
          })
          if (mode !== AnnotationEditorType.NONE) {
            if (mode === AnnotationEditorType.STAMP) {
              this.#mlManager?.loadModel("altText")
            }
            this.#annotationEditorUIManager.updateMode(mode)
          }
        } else {
          console.error(`Invalid AnnotationEditor mode: ${mode}`)
        }
      }
      const viewerElement = this._scrollMode === ScrollMode.PAGE ? null : viewer
      const scale = this.currentScale
      const viewport = firstPdfPage.getViewport({
        scale: scale * PixelsPerInch.PDF_TO_CSS_UNITS
      })
      viewer.style.setProperty("--scale-factor", viewport.scale)
      if (pageColors?.background) {
        viewer.style.setProperty("--page-bg-color", pageColors.background)
      }
      if (pageColors?.foreground === "CanvasText" || pageColors?.background === "Canvas") {
        viewer.style.setProperty("--hcm-highlight-filter", pdfDocument.filterFactory.addHighlightHCMFilter("highlight", "CanvasText", "Canvas", "HighlightText", "Highlight"))
        viewer.style.setProperty("--hcm-highlight-selected-filter", pdfDocument.filterFactory.addHighlightHCMFilter("highlight_selected", "CanvasText", "Canvas", "HighlightText", "ButtonText"))
      }
      for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) {
        const pageView = new PDFPageView({
          container: viewerElement,
          eventBus,
          id: pageNum,
          scale,
          defaultViewport: viewport.clone(),
          optionalContentConfigPromise,
          renderingQueue: this.renderingQueue,
          textLayerMode,
          annotationMode,
          imageResourcesPath: this.imageResourcesPath,
          maxCanvasPixels: this.maxCanvasPixels,
          pageColors,
          l10n: this.l10n,
          layerProperties: this._layerProperties,
          enableHWA: this.#enableHWA
        })
        this._pages.push(pageView)
      }
      this._pages[0]?.setPdfPage(firstPdfPage)
      if (this._scrollMode === ScrollMode.PAGE) {
        this.#ensurePageViewVisible()
      } else if (this._spreadMode !== SpreadMode.NONE) {
        this._updateSpreadMode()
      }
      this.#onePageRenderedOrForceFetch(signal).then(async () => {
        if (pdfDocument !== this.pdfDocument) {
          return
        }
        this.findController?.setDocument(pdfDocument)
        this._scriptingManager?.setDocument(pdfDocument)
        if (this.#hiddenCopyElement) {
          document.addEventListener("copy", this.#copyCallback.bind(this, textLayerMode), {
            signal
          })
        }
        if (this.#annotationEditorUIManager) {
          eventBus.dispatch("annotationeditormodechanged", {
            source: this,
            mode: this.#annotationEditorMode
          })
        }
        if (pdfDocument.loadingParams.disableAutoFetch || pagesCount > PagesCountLimit.FORCE_LAZY_PAGE_INIT) {
          this._pagesCapability.resolve()
          return
        }
        let getPagesLeft = pagesCount - 1
        if (getPagesLeft <= 0) {
          this._pagesCapability.resolve()
          return
        }
        for (let pageNum = 2; pageNum <= pagesCount; ++pageNum) {
          const promise = pdfDocument.getPage(pageNum).then(pdfPage => {
            const pageView = this._pages[pageNum - 1]
            if (!pageView.pdfPage) {
              pageView.setPdfPage(pdfPage)
            }
            if (--getPagesLeft === 0) {
              this._pagesCapability.resolve()
            }
          }, reason => {
            console.error(`Unable to get page ${pageNum} to initialize viewer`, reason)
            if (--getPagesLeft === 0) {
              this._pagesCapability.resolve()
            }
          })
          if (pageNum % PagesCountLimit.PAUSE_EAGER_PAGE_INIT === 0) {
            await promise
          }
        }
      })
      eventBus.dispatch("pagesinit", {
        source: this
      })
      pdfDocument.getMetadata().then(({
        info
      }) => {
        if (pdfDocument !== this.pdfDocument) {
          return
        }
        if (info.Language) {
          viewer.lang = info.Language
        }
      })
      if (this.defaultRenderingQueue) {
        this.update()
      }
    }).catch(reason => {
      console.error("Unable to initialize viewer", reason)
      this._pagesCapability.reject(reason)
    })
  }
  setPageLabels (labels) {
    if (!this.pdfDocument) {
      return
    }
    if (!labels) {
      this._pageLabels = null
    } else if (!(Array.isArray(labels) && this.pdfDocument.numPages === labels.length)) {
      this._pageLabels = null
      console.error(`setPageLabels: Invalid page labels.`)
    } else {
      this._pageLabels = labels
    }
    for (let i = 0, ii = this._pages.length; i < ii; i++) {
      this._pages[i].setPageLabel(this._pageLabels?.[i] ?? null)
    }
  }
  _resetView () {
    this._pages = []
    this._currentPageNumber = 1
    this._currentScale = UNKNOWN_SCALE
    this._currentScaleValue = null
    this._pageLabels = null
    this.#buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE)
    this._location = null
    this._pagesRotation = 0
    this._optionalContentConfigPromise = null
    this._firstPageCapability = Promise.withResolvers()
    this._onePageRenderedCapability = Promise.withResolvers()
    this._pagesCapability = Promise.withResolvers()
    this._scrollMode = ScrollMode.VERTICAL
    this._previousScrollMode = ScrollMode.UNKNOWN
    this._spreadMode = SpreadMode.NONE
    this.#scrollModePageState = {
      previousPageNumber: 1,
      scrollDown: true,
      pages: []
    }
    this.#eventAbortController?.abort()
    this.#eventAbortController = null
    this.viewer.textContent = ""
    this._updateScrollMode()
    this.viewer.removeAttribute("lang")
    this.#hiddenCopyElement?.remove()
    this.#hiddenCopyElement = null
    this.#cleanupSwitchAnnotationEditorMode()
  }
  #ensurePageViewVisible () {
    if (this._scrollMode !== ScrollMode.PAGE) {
      throw new Error("#ensurePageViewVisible: Invalid scrollMode value.")
    }
    const pageNumber = this._currentPageNumber,
      state = this.#scrollModePageState,
      viewer = this.viewer
    viewer.textContent = ""
    state.pages.length = 0
    if (this._spreadMode === SpreadMode.NONE && !this.isInPresentationMode) {
      const pageView = this._pages[pageNumber - 1]
      viewer.append(pageView.div)
      state.pages.push(pageView)
    } else {
      const pageIndexSet = new Set(),
        parity = this._spreadMode - 1
      if (parity === -1) {
        pageIndexSet.add(pageNumber - 1)
      } else if (pageNumber % 2 !== parity) {
        pageIndexSet.add(pageNumber - 1)
        pageIndexSet.add(pageNumber)
      } else {
        pageIndexSet.add(pageNumber - 2)
        pageIndexSet.add(pageNumber - 1)
      }
      const spread = document.createElement("div")
      spread.className = "spread"
      if (this.isInPresentationMode) {
        const dummyPage = document.createElement("div")
        dummyPage.className = "dummyPage"
        spread.append(dummyPage)
      }
      for (const i of pageIndexSet) {
        const pageView = this._pages[i]
        if (!pageView) {
          continue
        }
        spread.append(pageView.div)
        state.pages.push(pageView)
      }
      viewer.append(spread)
    }
    state.scrollDown = pageNumber >= state.previousPageNumber
    state.previousPageNumber = pageNumber
  }
  _scrollUpdate () {
    if (this.pagesCount === 0) {
      return
    }
    this.update()
  }
  #scrollIntoView (pageView, pageSpot = null) {
    const {
      div,
      id
    } = pageView
    if (this._currentPageNumber !== id) {
      this._setCurrentPageNumber(id)
    }
    if (this._scrollMode === ScrollMode.PAGE) {
      this.#ensurePageViewVisible()
      this.update()
    }
    if (!pageSpot && !this.isInPresentationMode) {
      const left = div.offsetLeft + div.clientLeft,
        right = left + div.clientWidth
      const {
        scrollLeft,
        clientWidth
      } = this.container
      if (this._scrollMode === ScrollMode.HORIZONTAL || left < scrollLeft || right > scrollLeft + clientWidth) {
        pageSpot = {
          left: 0,
          top: 0
        }
      }
    }
    scrollIntoView(div, pageSpot)
    if (!this._currentScaleValue && this._location) {
      this._location = null
    }
  }
  #isSameScale (newScale) {
    return newScale === this._currentScale || Math.abs(newScale - this._currentScale) < 1e-15
  }
  #setScaleUpdatePages (newScale, newValue, {
    noScroll = false,
    preset = false,
    drawingDelay = -1,
    origin = null
  }) {
    this._currentScaleValue = newValue.toString()
    if (this.#isSameScale(newScale)) {
      if (preset) {
        this.eventBus.dispatch("scalechanging", {
          source: this,
          scale: newScale,
          presetValue: newValue
        })
      }
      return
    }
    this.viewer.style.setProperty("--scale-factor", newScale * PixelsPerInch.PDF_TO_CSS_UNITS)
    const postponeDrawing = drawingDelay >= 0 && drawingDelay < 1000
    this.refresh(true, {
      scale: newScale,
      drawingDelay: postponeDrawing ? drawingDelay : -1
    })
    if (postponeDrawing) {
      this.#scaleTimeoutId = setTimeout(() => {
        this.#scaleTimeoutId = null
        this.refresh()
      }, drawingDelay)
    }
    const previousScale = this._currentScale
    this._currentScale = newScale
    if (!noScroll) {
      let page = this._currentPageNumber,
        dest
      if (this._location && !(this.isInPresentationMode || this.isChangingPresentationMode)) {
        page = this._location.pageNumber
        dest = [null, {
          name: "XYZ"
        }, this._location.left, this._location.top, null]
      }
      this.scrollPageIntoView({
        pageNumber: page,
        destArray: dest,
        allowNegativeOffset: true
      })
      if (Array.isArray(origin)) {
        const scaleDiff = newScale / previousScale - 1
        const [top, left] = this.containerTopLeft
        this.container.scrollLeft += (origin[0] - left) * scaleDiff
        this.container.scrollTop += (origin[1] - top) * scaleDiff
      }
    }
    this.eventBus.dispatch("scalechanging", {
      source: this,
      scale: newScale,
      presetValue: preset ? newValue : undefined
    })
    if (this.defaultRenderingQueue) {
      this.update()
    }
  }
  get #pageWidthScaleFactor () {
    if (this._spreadMode !== SpreadMode.NONE && this._scrollMode !== ScrollMode.HORIZONTAL) {
      return 2
    }
    return 1
  }
  #setScale (value, options) {
    let scale = parseFloat(value)
    if (scale > 0) {
      options.preset = false
      this.#setScaleUpdatePages(scale, value, options)
    } else {
      const currentPage = this._pages[this._currentPageNumber - 1]
      if (!currentPage) {
        return
      }
      let hPadding = SCROLLBAR_PADDING,
        vPadding = VERTICAL_PADDING
      if (this.isInPresentationMode) {
        hPadding = vPadding = 4
        if (this._spreadMode !== SpreadMode.NONE) {
          hPadding *= 2
        }
      } else if (this.removePageBorders) {
        hPadding = vPadding = 0
      } else if (this._scrollMode === ScrollMode.HORIZONTAL) {
        [hPadding, vPadding] = [vPadding, hPadding]
      }
      const pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale / this.#pageWidthScaleFactor
      const pageHeightScale = (this.container.clientHeight - vPadding) / currentPage.height * currentPage.scale
      switch (value) {
        case "page-actual":
          scale = 1
          break
        case "page-width":
          scale = pageWidthScale
          break
        case "page-height":
          scale = pageHeightScale
          break
        case "page-fit":
          scale = Math.min(pageWidthScale, pageHeightScale)
          break
        case "auto":
          const horizontalScale = isPortraitOrientation(currentPage) ? pageWidthScale : Math.min(pageHeightScale, pageWidthScale)
          scale = Math.min(MAX_AUTO_SCALE, horizontalScale)
          break
        default:
          console.error(`#setScale: "${value}" is an unknown zoom value.`)
          return
      }
      options.preset = true
      this.#setScaleUpdatePages(scale, value, options)
    }
  }
  #resetCurrentPageView () {
    const pageView = this._pages[this._currentPageNumber - 1]
    if (this.isInPresentationMode) {
      this.#setScale(this._currentScaleValue, {
        noScroll: true
      })
    }
    this.#scrollIntoView(pageView)
  }
  pageLabelToPageNumber (label) {
    if (!this._pageLabels) {
      return null
    }
    const i = this._pageLabels.indexOf(label)
    if (i < 0) {
      return null
    }
    return i + 1
  }
  scrollPageIntoView ({
    pageNumber,
    destArray = null,
    allowNegativeOffset = false,
    ignoreDestinationZoom = false,
    content_pos,
  }) {
    if (content_pos) {
      window.content_pos = content_pos
    }
    if (!this.pdfDocument) {
      return
    }
    const pageView = Number.isInteger(pageNumber) && this._pages[pageNumber - 1]
    if (!pageView) {
      console.error(`scrollPageIntoView: "${pageNumber}" is not a valid pageNumber parameter.`)
      return
    }
    if (this.isInPresentationMode || !destArray) {
      this._setCurrentPageNumber(pageNumber, true)
      setTimeout(() => {
        if (window.content_pos) {
          window.content_pos.forEach((item, index) => {
            const shadeEl = document.getElementById('shade' + index);
            if (shadeEl) {
              shadeEl.remove();
            }
            const page = item.page_no;
            const shade = {
              width: (item.right_bottom.x - item.left_top.x) * 100 + '%',
              height: (item.right_bottom.y - item.left_top.y) * 100 + '%',
              top: item.left_top.y * 100 + '%',
              left: item.left_top.x * 100 + '%',
            };
            const pageList = document.querySelectorAll(`[data-page-number='${page}']`);
            const pageView = pageList[1];
            const div = document.createElement('div');
            div.id = 'shade' + index;
            div.style.width = shade.width;
            div.style.height = shade.height;
            div.style.backgroundColor = 'rgb(255, 0, 0, 0.1)';
            div.style.position = 'absolute';
            div.style.top = shade.top;
            div.style.left = shade.left;
            div.style.zIndex = '1';
            pageView.appendChild(div);
          });
        }
      }, 500)
    }
    let x = 0,
      y = 0
    let width = 0,
      height = 0,
      widthScale,
      heightScale
    const changeOrientation = pageView.rotation % 180 !== 0
    const pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS
    const pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS
    let scale = 0
    switch (destArray[1].name) {
      case "XYZ":
        x = destArray[2]
        y = destArray[3]
        scale = destArray[4]
        x = x !== null ? x : 0
        y = y !== null ? y : pageHeight
        break
      case "Fit":
      case "FitB":
        scale = "page-fit"
        break
      case "FitH":
      case "FitBH":
        y = destArray[2]
        scale = "page-width"
        if (y === null && this._location) {
          x = this._location.left
          y = this._location.top
        } else if (typeof y !== "number" || y < 0) {
          y = pageHeight
        }
        break
      case "FitV":
      case "FitBV":
        x = destArray[2]
        width = pageWidth
        height = pageHeight
        scale = "page-height"
        break
      case "FitR":
        x = destArray[2]
        y = destArray[3]
        width = destArray[4] - x
        height = destArray[5] - y
        let hPadding = SCROLLBAR_PADDING,
          vPadding = VERTICAL_PADDING
        if (this.removePageBorders) {
          hPadding = vPadding = 0
        }
        widthScale = (this.container.clientWidth - hPadding) / width / PixelsPerInch.PDF_TO_CSS_UNITS
        heightScale = (this.container.clientHeight - vPadding) / height / PixelsPerInch.PDF_TO_CSS_UNITS
        scale = Math.min(Math.abs(widthScale), Math.abs(heightScale))
        break
      default:
        console.error(`scrollPageIntoView: "${destArray[1].name}" is not a valid destination type.`)
        return
    }
    if (!ignoreDestinationZoom) {
      if (scale && scale !== this._currentScale) {
        this.currentScaleValue = scale
      } else if (this._currentScale === UNKNOWN_SCALE) {
        this.currentScaleValue = DEFAULT_SCALE_VALUE
      }
    }
    if (scale === "page-fit" && !destArray[4]) {
      this.#scrollIntoView(pageView)
      return
    }
    const boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)]
    let left = Math.min(boundingRect[0][0], boundingRect[1][0])
    let top = Math.min(boundingRect[0][1], boundingRect[1][1])
    if (!allowNegativeOffset) {
      left = Math.max(left, 0)
      top = Math.max(top, 0)
    }
    this.#scrollIntoView(pageView, {
      left,
      top
    })
  }
  _updateLocation (firstPage) {
    const currentScale = this._currentScale
    const currentScaleValue = this._currentScaleValue
    const normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue
    const pageNumber = firstPage.id
    const currentPageView = this._pages[pageNumber - 1]
    const container = this.container
    const topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y)
    const intLeft = Math.round(topLeft[0])
    const intTop = Math.round(topLeft[1])
    let pdfOpenParams = `#page=${pageNumber}`
    if (!this.isInPresentationMode) {
      pdfOpenParams += `&zoom=${normalizedScaleValue},${intLeft},${intTop}`
    }
    this._location = {
      pageNumber,
      scale: normalizedScaleValue,
      top: intTop,
      left: intLeft,
      rotation: this._pagesRotation,
      pdfOpenParams
    }
  }
  update () {
    const visible = this._getVisiblePages()
    const visiblePages = visible.views,
      numVisiblePages = visiblePages.length
    if (numVisiblePages === 0) {
      return
    }
    const newCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * numVisiblePages + 1)
    this.#buffer.resize(newCacheSize, visible.ids)
    this.renderingQueue.renderHighestPriority(visible)
    const isSimpleLayout = this._spreadMode === SpreadMode.NONE && (this._scrollMode === ScrollMode.PAGE || this._scrollMode === ScrollMode.VERTICAL)
    const currentId = this._currentPageNumber
    let stillFullyVisible = false
    for (const page of visiblePages) {
      if (page.percent < 100) {
        break
      }
      if (page.id === currentId && isSimpleLayout) {
        stillFullyVisible = true
        break
      }
    }
    this._setCurrentPageNumber(stillFullyVisible ? currentId : visiblePages[0].id)
    this._updateLocation(visible.first)
    this.eventBus.dispatch("updateviewarea", {
      source: this,
      location: this._location
    })
  }
  #switchToEditAnnotationMode () {
    const visible = this._getVisiblePages()
    const pagesToRefresh = []
    const {
      ids,
      views
    } = visible
    for (const page of views) {
      const {
        view
      } = page
      if (!view.hasEditableAnnotations()) {
        ids.delete(view.id)
        continue
      }
      pagesToRefresh.push(page)
    }
    if (pagesToRefresh.length === 0) {
      return null
    }
    this.renderingQueue.renderHighestPriority({
      first: pagesToRefresh[0],
      last: pagesToRefresh.at(-1),
      views: pagesToRefresh,
      ids
    })
    return ids
  }
  containsElement (element) {
    return this.container.contains(element)
  }
  focus () {
    this.container.focus()
  }
  get _isContainerRtl () {
    return getComputedStyle(this.container).direction === "rtl"
  }
  get isInPresentationMode () {
    return this.presentationModeState === PresentationModeState.FULLSCREEN
  }
  get isChangingPresentationMode () {
    return this.presentationModeState === PresentationModeState.CHANGING
  }
  get isHorizontalScrollbarEnabled () {
    return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth
  }
  get isVerticalScrollbarEnabled () {
    return this.isInPresentationMode ? false : this.container.scrollHeight > this.container.clientHeight
  }
  _getVisiblePages () {
    const views = this._scrollMode === ScrollMode.PAGE ? this.#scrollModePageState.pages : this._pages,
      horizontal = this._scrollMode === ScrollMode.HORIZONTAL,
      rtl = horizontal && this._isContainerRtl
    return getVisibleElements({
      scrollEl: this.container,
      views,
      sortByVisibility: true,
      horizontal,
      rtl
    })
  }
  cleanup () {
    for (const pageView of this._pages) {
      if (pageView.renderingState !== RenderingStates.FINISHED) {
        pageView.reset()
      }
    }
  }
  _cancelRendering () {
    for (const pageView of this._pages) {
      pageView.cancelRendering()
    }
  }
  async #ensurePdfPageLoaded (pageView) {
    if (pageView.pdfPage) {
      return pageView.pdfPage
    }
    try {
      const pdfPage = await this.pdfDocument.getPage(pageView.id)
      if (!pageView.pdfPage) {
        pageView.setPdfPage(pdfPage)
      }
      return pdfPage
    } catch (reason) {
      console.error("Unable to get page for page view", reason)
      return null
    }
  }
  #getScrollAhead (visible) {
    if (visible.first?.id === 1) {
      return true
    } else if (visible.last?.id === this.pagesCount) {
      return false
    }
    switch (this._scrollMode) {
      case ScrollMode.PAGE:
        return this.#scrollModePageState.scrollDown
      case ScrollMode.HORIZONTAL:
        return this.scroll.right
    }
    return this.scroll.down
  }
  forceRendering (currentlyVisiblePages) {
    const visiblePages = currentlyVisiblePages || this._getVisiblePages()
    const scrollAhead = this.#getScrollAhead(visiblePages)
    const preRenderExtra = this._spreadMode !== SpreadMode.NONE && this._scrollMode !== ScrollMode.HORIZONTAL
    const pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, scrollAhead, preRenderExtra)
    if (pageView) {
      this.#ensurePdfPageLoaded(pageView).then(() => {
        this.renderingQueue.renderView(pageView)
      })
      return true
    }
    return false
  }
  get hasEqualPageSizes () {
    const firstPageView = this._pages[0]
    for (let i = 1, ii = this._pages.length; i < ii; ++i) {
      const pageView = this._pages[i]
      if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) {
        return false
      }
    }
    return true
  }
  getPagesOverview () {
    let initialOrientation
    return this._pages.map(pageView => {
      const viewport = pageView.pdfPage.getViewport({
        scale: 1
      })
      const orientation = isPortraitOrientation(viewport)
      if (initialOrientation === undefined) {
        initialOrientation = orientation
      } else if (this.enablePrintAutoRotate && orientation !== initialOrientation) {
        return {
          width: viewport.height,
          height: viewport.width,
          rotation: (viewport.rotation - 90) % 360
        }
      }
      return {
        width: viewport.width,
        height: viewport.height,
        rotation: viewport.rotation
      }
    })
  }
  get optionalContentConfigPromise () {
    if (!this.pdfDocument) {
      return Promise.resolve(null)
    }
    if (!this._optionalContentConfigPromise) {
      console.error("optionalContentConfigPromise: Not initialized yet.")
      return this.pdfDocument.getOptionalContentConfig({
        intent: "display"
      })
    }
    return this._optionalContentConfigPromise
  }
  set optionalContentConfigPromise (promise) {
    if (!(promise instanceof Promise)) {
      throw new Error(`Invalid optionalContentConfigPromise: ${promise}`)
    }
    if (!this.pdfDocument) {
      return
    }
    if (!this._optionalContentConfigPromise) {
      return
    }
    this._optionalContentConfigPromise = promise
    this.refresh(false, {
      optionalContentConfigPromise: promise
    })
    this.eventBus.dispatch("optionalcontentconfigchanged", {
      source: this,
      promise
    })
  }
  get scrollMode () {
    return this._scrollMode
  }
  set scrollMode (mode) {
    if (this._scrollMode === mode) {
      return
    }
    if (!isValidScrollMode(mode)) {
      throw new Error(`Invalid scroll mode: ${mode}`)
    }
    if (this.pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE) {
      return
    }
    this._previousScrollMode = this._scrollMode
    this._scrollMode = mode
    this.eventBus.dispatch("scrollmodechanged", {
      source: this,
      mode
    })
    this._updateScrollMode(this._currentPageNumber)
  }
  _updateScrollMode (pageNumber = null) {
    const scrollMode = this._scrollMode,
      viewer = this.viewer
    viewer.classList.toggle("scrollHorizontal", scrollMode === ScrollMode.HORIZONTAL)
    viewer.classList.toggle("scrollWrapped", scrollMode === ScrollMode.WRAPPED)
    if (!this.pdfDocument || !pageNumber) {
      return
    }
    if (scrollMode === ScrollMode.PAGE) {
      this.#ensurePageViewVisible()
    } else if (this._previousScrollMode === ScrollMode.PAGE) {
      this._updateSpreadMode()
    }
    if (this._currentScaleValue && isNaN(this._currentScaleValue)) {
      this.#setScale(this._currentScaleValue, {
        noScroll: true
      })
    }
    this._setCurrentPageNumber(pageNumber, true)
    this.update()
  }
  get spreadMode () {
    return this._spreadMode
  }
  set spreadMode (mode) {
    if (this._spreadMode === mode) {
      return
    }
    if (!isValidSpreadMode(mode)) {
      throw new Error(`Invalid spread mode: ${mode}`)
    }
    this._spreadMode = mode
    this.eventBus.dispatch("spreadmodechanged", {
      source: this,
      mode
    })
    this._updateSpreadMode(this._currentPageNumber)
  }
  _updateSpreadMode (pageNumber = null) {
    if (!this.pdfDocument) {
      return
    }
    const viewer = this.viewer,
      pages = this._pages
    if (this._scrollMode === ScrollMode.PAGE) {
      this.#ensurePageViewVisible()
    } else {
      viewer.textContent = ""
      if (this._spreadMode === SpreadMode.NONE) {
        for (const pageView of this._pages) {
          viewer.append(pageView.div)
        }
      } else {
        const parity = this._spreadMode - 1
        let spread = null
        for (let i = 0, ii = pages.length; i < ii; ++i) {
          if (spread === null) {
            spread = document.createElement("div")
            spread.className = "spread"
            viewer.append(spread)
          } else if (i % 2 === parity) {
            spread = spread.cloneNode(false)
            viewer.append(spread)
          }
          spread.append(pages[i].div)
        }
      }
    }
    if (!pageNumber) {
      return
    }
    if (this._currentScaleValue && isNaN(this._currentScaleValue)) {
      this.#setScale(this._currentScaleValue, {
        noScroll: true
      })
    }
    this._setCurrentPageNumber(pageNumber, true)
    this.update()
  }
  _getPageAdvance (currentPageNumber, previous = false) {
    switch (this._scrollMode) {
      case ScrollMode.WRAPPED:
        {
          const {
            views
          } = this._getVisiblePages(),
            pageLayout = new Map()
          for (const {
            id,
            y,
            percent,
            widthPercent
          } of views) {
            if (percent === 0 || widthPercent < 100) {
              continue
            }
            let yArray = pageLayout.get(y)
            if (!yArray) {
              pageLayout.set(y, yArray ||= [])
            }
            yArray.push(id)
          }
          for (const yArray of pageLayout.values()) {
            const currentIndex = yArray.indexOf(currentPageNumber)
            if (currentIndex === -1) {
              continue
            }
            const numPages = yArray.length
            if (numPages === 1) {
              break
            }
            if (previous) {
              for (let i = currentIndex - 1, ii = 0; i >= ii; i--) {
                const currentId = yArray[i],
                  expectedId = yArray[i + 1] - 1
                if (currentId < expectedId) {
                  return currentPageNumber - expectedId
                }
              }
            } else {
              for (let i = currentIndex + 1, ii = numPages; i < ii; i++) {
                const currentId = yArray[i],
                  expectedId = yArray[i - 1] + 1
                if (currentId > expectedId) {
                  return expectedId - currentPageNumber
                }
              }
            }
            if (previous) {
              const firstId = yArray[0]
              if (firstId < currentPageNumber) {
                return currentPageNumber - firstId + 1
              }
            } else {
              const lastId = yArray[numPages - 1]
              if (lastId > currentPageNumber) {
                return lastId - currentPageNumber + 1
              }
            }
            break
          }
          break
        }
      case ScrollMode.HORIZONTAL:
        {
          break
        }
      case ScrollMode.PAGE:
      case ScrollMode.VERTICAL:
        {
          if (this._spreadMode === SpreadMode.NONE) {
            break
          }
          const parity = this._spreadMode - 1
          if (previous && currentPageNumber % 2 !== parity) {
            break
          } else if (!previous && currentPageNumber % 2 === parity) {
            break
          }
          const {
            views
          } = this._getVisiblePages(),
            expectedId = previous ? currentPageNumber - 1 : currentPageNumber + 1
          for (const {
            id,
            percent,
            widthPercent
          } of views) {
            if (id !== expectedId) {
              continue
            }
            if (percent > 0 && widthPercent === 100) {
              return 2
            }
            break
          }
          break
        }
    }
    return 1
  }
  nextPage () {
    const currentPageNumber = this._currentPageNumber,
      pagesCount = this.pagesCount
    if (currentPageNumber >= pagesCount) {
      return false
    }
    const advance = this._getPageAdvance(currentPageNumber, false) || 1
    this.currentPageNumber = Math.min(currentPageNumber + advance, pagesCount)
    return true
  }
  previousPage () {
    const currentPageNumber = this._currentPageNumber
    if (currentPageNumber <= 1) {
      return false
    }
    const advance = this._getPageAdvance(currentPageNumber, true) || 1
    this.currentPageNumber = Math.max(currentPageNumber - advance, 1)
    return true
  }
  updateScale ({
    drawingDelay,
    scaleFactor = null,
    steps = null,
    origin
  }) {
    if (steps === null && scaleFactor === null) {
      throw new Error("Invalid updateScale options: either `steps` or `scaleFactor` must be provided.")
    }
    if (!this.pdfDocument) {
      return
    }
    let newScale = this._currentScale
    if (scaleFactor > 0 && scaleFactor !== 1) {
      newScale = Math.round(newScale * scaleFactor * 100) / 100
    } else if (steps) {
      const delta = steps > 0 ? DEFAULT_SCALE_DELTA : 1 / DEFAULT_SCALE_DELTA
      const round = steps > 0 ? Math.ceil : Math.floor
      steps = Math.abs(steps)
      do {
        newScale = round((newScale * delta).toFixed(2) * 10) / 10
      } while (--steps > 0)
    }
    newScale = Math.max(MIN_SCALE, Math.min(MAX_SCALE, newScale))
    this.#setScale(newScale, {
      noScroll: false,
      drawingDelay,
      origin
    })
  }
  increaseScale (options = {}) {
    this.updateScale({
      ...options,
      steps: options.steps ?? 1
    })
  }
  decreaseScale (options = {}) {
    this.updateScale({
      ...options,
      steps: -(options.steps ?? 1)
    })
  }
  #updateContainerHeightCss (height = this.container.clientHeight) {
    if (height !== this.#previousContainerHeight) {
      this.#previousContainerHeight = height
      docStyle.setProperty("--viewer-container-height", `${height}px`)
    }
  }
  #resizeObserverCallback (entries) {
    for (const entry of entries) {
      if (entry.target === this.container) {
        this.#updateContainerHeightCss(Math.floor(entry.borderBoxSize[0].blockSize))
        this.#containerTopLeft = null
        break
      }
    }
  }
  get containerTopLeft () {
    return this.#containerTopLeft ||= [this.container.offsetTop, this.container.offsetLeft]
  }
  #cleanupSwitchAnnotationEditorMode () {
    this.#switchAnnotationEditorModeAC?.abort()
    this.#switchAnnotationEditorModeAC = null
    if (this.#switchAnnotationEditorModeTimeoutId !== null) {
      clearTimeout(this.#switchAnnotationEditorModeTimeoutId)
      this.#switchAnnotationEditorModeTimeoutId = null
    }
  }
  get annotationEditorMode () {
    return this.#annotationEditorUIManager ? this.#annotationEditorMode : AnnotationEditorType.DISABLE
  }
  set annotationEditorMode ({
    mode,
    editId = null,
    isFromKeyboard = false
  }) {
    if (!this.#annotationEditorUIManager) {
      throw new Error(`The AnnotationEditor is not enabled.`)
    }
    if (this.#annotationEditorMode === mode) {
      return
    }
    if (!isValidAnnotationEditorMode(mode)) {
      throw new Error(`Invalid AnnotationEditor mode: ${mode}`)
    }
    if (!this.pdfDocument) {
      return
    }
    if (mode === AnnotationEditorType.STAMP) {
      this.#mlManager?.loadModel("altText")
    }
    const {
      eventBus
    } = this
    const updater = () => {
      this.#cleanupSwitchAnnotationEditorMode()
      this.#annotationEditorMode = mode
      this.#annotationEditorUIManager.updateMode(mode, editId, isFromKeyboard)
      eventBus.dispatch("annotationeditormodechanged", {
        source: this,
        mode
      })
    }
    if (mode === AnnotationEditorType.NONE || this.#annotationEditorMode === AnnotationEditorType.NONE) {
      const isEditing = mode !== AnnotationEditorType.NONE
      if (!isEditing) {
        this.pdfDocument.annotationStorage.resetModifiedIds()
      }
      for (const pageView of this._pages) {
        pageView.toggleEditingMode(isEditing)
      }
      const idsToRefresh = this.#switchToEditAnnotationMode()
      if (isEditing && idsToRefresh) {
        this.#cleanupSwitchAnnotationEditorMode()
        this.#switchAnnotationEditorModeAC = new AbortController()
        const signal = AbortSignal.any([this.#eventAbortController.signal, this.#switchAnnotationEditorModeAC.signal])
        eventBus._on("pagerendered", ({
          pageNumber
        }) => {
          idsToRefresh.delete(pageNumber)
          if (idsToRefresh.size === 0) {
            this.#switchAnnotationEditorModeTimeoutId = setTimeout(updater, 0)
          }
        }, {
          signal
        })
        return
      }
    }
    updater()
  }
  refresh (noUpdate = false, updateArgs = Object.create(null)) {
    if (!this.pdfDocument) {
      return
    }
    for (const pageView of this._pages) {
      pageView.update(updateArgs)
    }
    if (this.#scaleTimeoutId !== null) {
      clearTimeout(this.#scaleTimeoutId)
      this.#scaleTimeoutId = null
    }
    if (!noUpdate) {
      this.update()
    }
  }
}

;// ./web/secondary_toolbar.js


class SecondaryToolbar {
  #opts
  constructor(options, eventBus) {
    this.#opts = options
    const buttons = [{
      element: options.presentationModeButton,
      eventName: "presentationmode",
      close: true
    }, {
      element: options.printButton,
      eventName: "print",
      close: true
    }, {
      element: options.downloadButton,
      eventName: "download",
      close: true
    }, {
      element: options.viewBookmarkButton,
      eventName: null,
      close: true
    }, {
      element: options.firstPageButton,
      eventName: "firstpage",
      close: true
    }, {
      element: options.lastPageButton,
      eventName: "lastpage",
      close: true
    }, {
      element: options.pageRotateCwButton,
      eventName: "rotatecw",
      close: false
    }, {
      element: options.pageRotateCcwButton,
      eventName: "rotateccw",
      close: false
    }, {
      element: options.cursorSelectToolButton,
      eventName: "switchcursortool",
      eventDetails: {
        tool: CursorTool.SELECT
      },
      close: true
    }, {
      element: options.cursorHandToolButton,
      eventName: "switchcursortool",
      eventDetails: {
        tool: CursorTool.HAND
      },
      close: true
    }, {
      element: options.scrollPageButton,
      eventName: "switchscrollmode",
      eventDetails: {
        mode: ScrollMode.PAGE
      },
      close: true
    }, {
      element: options.scrollVerticalButton,
      eventName: "switchscrollmode",
      eventDetails: {
        mode: ScrollMode.VERTICAL
      },
      close: true
    }, {
      element: options.scrollHorizontalButton,
      eventName: "switchscrollmode",
      eventDetails: {
        mode: ScrollMode.HORIZONTAL
      },
      close: true
    }, {
      element: options.scrollWrappedButton,
      eventName: "switchscrollmode",
      eventDetails: {
        mode: ScrollMode.WRAPPED
      },
      close: true
    }, {
      element: options.spreadNoneButton,
      eventName: "switchspreadmode",
      eventDetails: {
        mode: SpreadMode.NONE
      },
      close: true
    }, {
      element: options.spreadOddButton,
      eventName: "switchspreadmode",
      eventDetails: {
        mode: SpreadMode.ODD
      },
      close: true
    }, {
      element: options.spreadEvenButton,
      eventName: "switchspreadmode",
      eventDetails: {
        mode: SpreadMode.EVEN
      },
      close: true
    }, {
      element: options.imageAltTextSettingsButton,
      eventName: "imagealttextsettings",
      close: true
    }, {
      element: options.documentPropertiesButton,
      eventName: "documentproperties",
      close: true
    }]
    buttons.push({
      element: options.openFileButton,
      eventName: "openfile",
      close: true
    })
    this.eventBus = eventBus
    this.opened = false
    this.#bindListeners(buttons)
    this.reset()
  }
  get isOpen () {
    return this.opened
  }
  setPageNumber (pageNumber) {
    this.pageNumber = pageNumber
    this.#updateUIState()
  }
  setPagesCount (pagesCount) {
    this.pagesCount = pagesCount
    this.#updateUIState()
  }
  reset () {
    this.pageNumber = 0
    this.pagesCount = 0
    this.#updateUIState()
    this.eventBus.dispatch("switchcursortool", {
      source: this,
      reset: true
    })
    this.#scrollModeChanged({
      mode: ScrollMode.VERTICAL
    })
    this.#spreadModeChanged({
      mode: SpreadMode.NONE
    })
  }
  #updateUIState () {
    const {
      firstPageButton,
      lastPageButton,
      pageRotateCwButton,
      pageRotateCcwButton
    } = this.#opts
    firstPageButton.disabled = this.pageNumber <= 1
    lastPageButton.disabled = this.pageNumber >= this.pagesCount
    pageRotateCwButton.disabled = this.pagesCount === 0
    pageRotateCcwButton.disabled = this.pagesCount === 0
  }
  #bindListeners (buttons) {
    const {
      eventBus
    } = this
    const {
      toggleButton
    } = this.#opts
    toggleButton.addEventListener("click", this.toggle.bind(this))
    for (const {
      element,
      eventName,
      close,
      eventDetails
    } of buttons) {
      element.addEventListener("click", evt => {
        if (eventName !== null) {
          eventBus.dispatch(eventName, {
            source: this,
            ...eventDetails
          })
        }
        if (close) {
          this.close()
        }
        eventBus.dispatch("reporttelemetry", {
          source: this,
          details: {
            type: "buttons",
            data: {
              id: element.id
            }
          }
        })
      })
    }
    eventBus._on("cursortoolchanged", this.#cursorToolChanged.bind(this))
    eventBus._on("scrollmodechanged", this.#scrollModeChanged.bind(this))
    eventBus._on("spreadmodechanged", this.#spreadModeChanged.bind(this))
  }
  #cursorToolChanged ({
    tool,
    disabled
  }) {
    const {
      cursorSelectToolButton,
      cursorHandToolButton
    } = this.#opts
    toggleCheckedBtn(cursorSelectToolButton, tool === CursorTool.SELECT)
    toggleCheckedBtn(cursorHandToolButton, tool === CursorTool.HAND)
    cursorSelectToolButton.disabled = disabled
    cursorHandToolButton.disabled = disabled
  }
  #scrollModeChanged ({
    mode
  }) {
    const {
      scrollPageButton,
      scrollVerticalButton,
      scrollHorizontalButton,
      scrollWrappedButton,
      spreadNoneButton,
      spreadOddButton,
      spreadEvenButton
    } = this.#opts
    toggleCheckedBtn(scrollPageButton, mode === ScrollMode.PAGE)
    toggleCheckedBtn(scrollVerticalButton, mode === ScrollMode.VERTICAL)
    toggleCheckedBtn(scrollHorizontalButton, mode === ScrollMode.HORIZONTAL)
    toggleCheckedBtn(scrollWrappedButton, mode === ScrollMode.WRAPPED)
    const forceScrollModePage = this.pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE
    scrollPageButton.disabled = forceScrollModePage
    scrollVerticalButton.disabled = forceScrollModePage
    scrollHorizontalButton.disabled = forceScrollModePage
    scrollWrappedButton.disabled = forceScrollModePage
    const isHorizontal = mode === ScrollMode.HORIZONTAL
    spreadNoneButton.disabled = isHorizontal
    spreadOddButton.disabled = isHorizontal
    spreadEvenButton.disabled = isHorizontal
  }
  #spreadModeChanged ({
    mode
  }) {
    const {
      spreadNoneButton,
      spreadOddButton,
      spreadEvenButton
    } = this.#opts
    toggleCheckedBtn(spreadNoneButton, mode === SpreadMode.NONE)
    toggleCheckedBtn(spreadOddButton, mode === SpreadMode.ODD)
    toggleCheckedBtn(spreadEvenButton, mode === SpreadMode.EVEN)
  }
  open () {
    if (this.opened) {
      return
    }
    this.opened = true
    const {
      toggleButton,
      toolbar
    } = this.#opts
    toggleExpandedBtn(toggleButton, true, toolbar)
  }
  close () {
    if (!this.opened) {
      return
    }
    this.opened = false
    const {
      toggleButton,
      toolbar
    } = this.#opts
    toggleExpandedBtn(toggleButton, false, toolbar)
  }
  toggle () {
    if (this.opened) {
      this.close()
    } else {
      this.open()
    }
  }
}

;// ./web/toolbar.js


class Toolbar {
  #opts
  constructor(options, eventBus, toolbarDensity = 0) {
    this.#opts = options
    this.eventBus = eventBus
    const buttons = [{
      element: options.previous,
      eventName: "previouspage"
    }, {
      element: options.next,
      eventName: "nextpage"
    }, {
      element: options.zoomIn,
      eventName: "zoomin"
    }, {
      element: options.zoomOut,
      eventName: "zoomout"
    }, {
      element: options.print,
      eventName: "print"
    }, {
      element: options.download,
      eventName: "download"
    }, {
      element: options.editorFreeTextButton,
      eventName: "switchannotationeditormode",
      eventDetails: {
        get mode () {
          const {
            classList
          } = options.editorFreeTextButton
          return classList.contains("toggled") ? AnnotationEditorType.NONE : AnnotationEditorType.FREETEXT
        }
      }
    }, {
      element: options.editorHighlightButton,
      eventName: "switchannotationeditormode",
      eventDetails: {
        get mode () {
          const {
            classList
          } = options.editorHighlightButton
          return classList.contains("toggled") ? AnnotationEditorType.NONE : AnnotationEditorType.HIGHLIGHT
        }
      }
    }, {
      element: options.editorInkButton,
      eventName: "switchannotationeditormode",
      eventDetails: {
        get mode () {
          const {
            classList
          } = options.editorInkButton
          return classList.contains("toggled") ? AnnotationEditorType.NONE : AnnotationEditorType.INK
        }
      }
    }, {
      element: options.editorStampButton,
      eventName: "switchannotationeditormode",
      eventDetails: {
        get mode () {
          const {
            classList
          } = options.editorStampButton
          return classList.contains("toggled") ? AnnotationEditorType.NONE : AnnotationEditorType.STAMP
        }
      },
      telemetry: {
        type: "editing",
        data: {
          action: "pdfjs.image.icon_click"
        }
      }
    }]
    this.#bindListeners(buttons)
    this.#updateToolbarDensity({
      value: toolbarDensity
    })
    this.reset()
  }
  #updateToolbarDensity ({
    value
  }) {
    let name = "normal"
    switch (value) {
      case 1:
        name = "compact"
        break
      case 2:
        name = "touch"
        break
    }
    document.documentElement.setAttribute("data-toolbar-density", name)
  }
  #setAnnotationEditorUIManager (uiManager, parentContainer) {
    const colorPicker = new ColorPicker({
      uiManager
    })
    uiManager.setMainHighlightColorPicker(colorPicker)
    parentContainer.append(colorPicker.renderMainDropdown())
  }
  setPageNumber (pageNumber, pageLabel) {
    this.pageNumber = pageNumber
    this.pageLabel = pageLabel
    this.#updateUIState(false)
  }
  setPagesCount (pagesCount, hasPageLabels) {
    this.pagesCount = pagesCount
    this.hasPageLabels = hasPageLabels
    this.#updateUIState(true)
  }
  setPageScale (pageScaleValue, pageScale) {
    this.pageScaleValue = (pageScaleValue || pageScale).toString()
    this.pageScale = pageScale
    this.#updateUIState(false)
  }
  reset () {
    this.pageNumber = 0
    this.pageLabel = null
    this.hasPageLabels = false
    this.pagesCount = 0
    this.pageScaleValue = DEFAULT_SCALE_VALUE
    this.pageScale = DEFAULT_SCALE
    this.#updateUIState(true)
    this.updateLoadingIndicatorState()
    this.#editorModeChanged({
      mode: AnnotationEditorType.DISABLE
    })
  }
  #bindListeners (buttons) {
    const {
      eventBus
    } = this
    const {
      editorHighlightColorPicker,
      editorHighlightButton,
      pageNumber,
      scaleSelect
    } = this.#opts
    const self = this
    for (const {
      element,
      eventName,
      eventDetails,
      telemetry
    } of buttons) {
      element.addEventListener("click", evt => {
        if (eventName !== null) {
          eventBus.dispatch(eventName, {
            source: this,
            ...eventDetails,
            isFromKeyboard: evt.detail === 0
          })
        }
        if (telemetry) {
          eventBus.dispatch("reporttelemetry", {
            source: this,
            details: telemetry
          })
        }
      })
    }
    pageNumber.addEventListener("click", function () {
      this.select()
    })
    pageNumber.addEventListener("change", function () {
      eventBus.dispatch("pagenumberchanged", {
        source: self,
        value: this.value
      })
    })
    scaleSelect.addEventListener("change", function () {
      if (this.value === "custom") {
        return
      }
      eventBus.dispatch("scalechanged", {
        source: self,
        value: this.value
      })
    })
    scaleSelect.addEventListener("click", function ({
      target
    }) {
      if (this.value === self.pageScaleValue && target.tagName.toUpperCase() === "OPTION") {
        this.blur()
      }
    })
    scaleSelect.oncontextmenu = noContextMenu
    eventBus._on("annotationeditormodechanged", this.#editorModeChanged.bind(this))
    eventBus._on("showannotationeditorui", ({
      mode
    }) => {
      switch (mode) {
        case AnnotationEditorType.HIGHLIGHT:
          editorHighlightButton.click()
          break
      }
    })
    eventBus._on("toolbardensity", this.#updateToolbarDensity.bind(this))
    if (editorHighlightColorPicker) {
      eventBus._on("annotationeditoruimanager", ({
        uiManager
      }) => {
        this.#setAnnotationEditorUIManager(uiManager, editorHighlightColorPicker)
      }, {
        once: true
      })
    }
  }
  #editorModeChanged ({
    mode
  }) {
    const {
      editorFreeTextButton,
      editorFreeTextParamsToolbar,
      editorHighlightButton,
      editorHighlightParamsToolbar,
      editorInkButton,
      editorInkParamsToolbar,
      editorStampButton,
      editorStampParamsToolbar
    } = this.#opts
    toggleExpandedBtn(editorFreeTextButton, mode === AnnotationEditorType.FREETEXT, editorFreeTextParamsToolbar)
    toggleExpandedBtn(editorHighlightButton, mode === AnnotationEditorType.HIGHLIGHT, editorHighlightParamsToolbar)
    toggleExpandedBtn(editorInkButton, mode === AnnotationEditorType.INK, editorInkParamsToolbar)
    toggleExpandedBtn(editorStampButton, mode === AnnotationEditorType.STAMP, editorStampParamsToolbar)
    const isDisable = mode === AnnotationEditorType.DISABLE
    editorFreeTextButton.disabled = isDisable
    editorHighlightButton.disabled = isDisable
    editorInkButton.disabled = isDisable
    editorStampButton.disabled = isDisable
  }
  #updateUIState (resetNumPages = false) {
    console.log('11111')
    const {
      pageNumber,
      pagesCount,
      pageScaleValue,
      pageScale
    } = this
    const opts = this.#opts
    if (resetNumPages) {
      if (this.hasPageLabels) {
        opts.pageNumber.type = "text"
        opts.numPages.setAttribute("data-l10n-id", "pdfjs-page-of-pages")
      } else {
        opts.pageNumber.type = "number"
        opts.numPages.setAttribute("data-l10n-id", "pdfjs-of-pages")
        opts.numPages.setAttribute("data-l10n-args", JSON.stringify({
          pagesCount
        }))
      }
      opts.pageNumber.max = pagesCount
    }
    if (this.hasPageLabels) {
      opts.pageNumber.value = this.pageLabel
      opts.numPages.setAttribute("data-l10n-args", JSON.stringify({
        pageNumber,
        pagesCount
      }))
    } else {
      opts.pageNumber.value = pageNumber
    }
    opts.previous.disabled = pageNumber <= 1
    opts.next.disabled = pageNumber >= pagesCount
    opts.zoomOut.disabled = pageScale <= MIN_SCALE
    opts.zoomIn.disabled = pageScale >= MAX_SCALE
    let predefinedValueFound = false
    for (const option of opts.scaleSelect.options) {
      if (option.value !== pageScaleValue) {
        option.selected = false
        continue
      }
      option.selected = true
      predefinedValueFound = true
    }
    if (!predefinedValueFound) {
      opts.customScaleOption.selected = true
      opts.customScaleOption.setAttribute("data-l10n-args", JSON.stringify({
        scale: Math.round(pageScale * 10000) / 100
      }))
    }
    setTimeout(() => {
      if (window.content_pos) {
        window.content_pos.forEach((item, index) => {
          const shadeEl = document.getElementById('shade' + index)
          if (shadeEl) {
            shadeEl.remove()
          }
          const page = item.page_no
          const shade = {
            width: (item.right_bottom.x - item.left_top.x) * 100 + '%',
            height: (item.right_bottom.y - item.left_top.y) * 100 + '%',
            top: item.left_top.y * 100 + '%',
            left: item.left_top.x * 100 + '%',
          }
          const pageList = document.querySelectorAll(`[data-page-number='${page}']`)
          const pageView = pageList[1]
          const div = document.createElement('div')
          div.id = 'shade' + index
          div.style.width = shade.width
          div.style.height = shade.height
          div.style.backgroundColor = 'rgb(255, 255, 0, 0.1)'
          div.style.position = 'absolute'
          div.style.top = shade.top
          div.style.left = shade.left
          div.style.zIndex = '1'
          pageView.appendChild(div)
        })
      }
      // 测试的坐标
      // const content_pos_1 = {
      //   x: 0.12896094325718496,
      //   y: 0.36633663366336633,
      // }
      // const content_pos_2 = {
      //   x: 0.868828297715549,
      //   y: 0.6951537258989057,
      // }
      // // 查找属性 data-page-number='页码' 的 dom 元素
      // const pageList = document.querySelectorAll(`[data-page-number='${1}']`)
      // console.log('查询到的dom列表===>\n', pageList[1])
      // // 查询到的第一个是左侧小菜单页码div，第二个是才是展示的div
      // const pageView = pageList[1]
      // console.log('右侧展示的dom===>\n', pageView)
      // // 在元素上画一个div
      // const div = document.createElement('div')
      // div.style.width = (content_pos_2.x - content_pos_1.x) * 100 + '%'
      // div.style.height = (content_pos_2.y - content_pos_1.y) * 100 + '%'
      // div.style.backgroundColor = 'rgb(255, 255, 0, 0.1)'
      // div.style.position = 'absolute'
      // div.style.top = content_pos_1.y * 100 + '%'
      // div.style.left = content_pos_1.x * 100 + '%'
      // div.style.zIndex = '1' // pdfjs 文本的层级是2 所以这里要设置为1 放着不能复制
      // pageView.appendChild(div)

    }, 500)
    window.parent.postMessage(
      {
        page: pageNumber,
      },
      '*',
    )
  }
  updateLoadingIndicatorState (loading = false) {
    const {
      pageNumber
    } = this.#opts
    pageNumber.classList.toggle("loading", loading)
  }
}

;// ./web/view_history.js
const DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20
class ViewHistory {
  constructor(fingerprint, cacheSize = DEFAULT_VIEW_HISTORY_CACHE_SIZE) {
    this.fingerprint = fingerprint
    this.cacheSize = cacheSize
    this._initializedPromise = this._readFromStorage().then(databaseStr => {
      const database = JSON.parse(databaseStr || "{}")
      let index = -1
      if (!Array.isArray(database.files)) {
        database.files = []
      } else {
        while (database.files.length >= this.cacheSize) {
          database.files.shift()
        }
        for (let i = 0, ii = database.files.length; i < ii; i++) {
          const branch = database.files[i]
          if (branch.fingerprint === this.fingerprint) {
            index = i
            break
          }
        }
      }
      if (index === -1) {
        index = database.files.push({
          fingerprint: this.fingerprint
        }) - 1
      }
      this.file = database.files[index]
      this.database = database
    })
  }
  async _writeToStorage () {
    const databaseStr = JSON.stringify(this.database)
    localStorage.setItem("pdfjs.history", databaseStr)
  }
  async _readFromStorage () {
    return localStorage.getItem("pdfjs.history")
  }
  async set (name, val) {
    await this._initializedPromise
    this.file[name] = val
    return this._writeToStorage()
  }
  async setMultiple (properties) {
    await this._initializedPromise
    for (const name in properties) {
      this.file[name] = properties[name]
    }
    return this._writeToStorage()
  }
  async get (name, defaultValue) {
    await this._initializedPromise
    const val = this.file[name]
    return val !== undefined ? val : defaultValue
  }
  async getMultiple (properties) {
    await this._initializedPromise
    const values = Object.create(null)
    for (const name in properties) {
      const val = this.file[name]
      values[name] = val !== undefined ? val : properties[name]
    }
    return values
  }
}

;// ./web/app.js

































const FORCE_PAGES_LOADED_TIMEOUT = 10000
const ViewOnLoad = {
  UNKNOWN: -1,
  PREVIOUS: 0,
  INITIAL: 1
}
const PDFViewerApplication = {
  initialBookmark: document.location.hash.substring(1),
  _initializedCapability: {
    ...Promise.withResolvers(),
    settled: false
  },
  appConfig: null,
  pdfDocument: null,
  pdfLoadingTask: null,
  printService: null,
  pdfViewer: null,
  pdfThumbnailViewer: null,
  pdfRenderingQueue: null,
  pdfPresentationMode: null,
  pdfDocumentProperties: null,
  pdfLinkService: null,
  pdfHistory: null,
  pdfSidebar: null,
  pdfOutlineViewer: null,
  pdfAttachmentViewer: null,
  pdfLayerViewer: null,
  pdfCursorTools: null,
  pdfScriptingManager: null,
  store: null,
  downloadManager: null,
  overlayManager: null,
  preferences: new Preferences(),
  toolbar: null,
  secondaryToolbar: null,
  eventBus: null,
  l10n: null,
  annotationEditorParams: null,
  imageAltTextSettings: null,
  isInitialViewSet: false,
  isViewerEmbedded: window.parent !== window,
  url: "",
  baseUrl: "",
  mlManager: null,
  _downloadUrl: "",
  _eventBusAbortController: null,
  _windowAbortController: null,
  _globalAbortController: new AbortController(),
  documentInfo: null,
  metadata: null,
  _contentDispositionFilename: null,
  _contentLength: null,
  _saveInProgress: false,
  _wheelUnusedTicks: 0,
  _wheelUnusedFactor: 1,
  _touchManager: null,
  _touchUnusedTicks: 0,
  _touchUnusedFactor: 1,
  _PDFBug: null,
  _hasAnnotationEditors: false,
  _title: document.title,
  _printAnnotationStoragePromise: null,
  _isCtrlKeyDown: false,
  _caretBrowsing: null,
  _isScrolling: false,
  editorUndoBar: null,
  async initialize (appConfig) {
    this.appConfig = appConfig
    try {
      await this.preferences.initializedPromise
    } catch (ex) {
      console.error("initialize:", ex)
    }
    if (AppOptions.get("pdfBugEnabled")) {
      await this._parseHashParams()
    }
    let mode
    switch (AppOptions.get("viewerCssTheme")) {
      case 1:
        mode = "is-light"
        break
      case 2:
        mode = "is-dark"
        break
    }
    if (mode) {
      document.documentElement.classList.add(mode)
    }
    this.l10n = await this.externalServices.createL10n()
    document.getElementsByTagName("html")[0].dir = this.l10n.getDirection()
    this.l10n.translate(appConfig.appContainer || document.documentElement)
    if (this.isViewerEmbedded && AppOptions.get("externalLinkTarget") === LinkTarget.NONE) {
      AppOptions.set("externalLinkTarget", LinkTarget.TOP)
    }
    await this._initializeViewerComponents()
    this.bindEvents()
    this.bindWindowEvents()
    this._initializedCapability.settled = true
    this._initializedCapability.resolve()
  },
  async _parseHashParams () {
    const hash = document.location.hash.substring(1)
    if (!hash) {
      return
    }
    const {
      mainContainer,
      viewerContainer
    } = this.appConfig,
      params = parseQueryString(hash)
    const loadPDFBug = async () => {
      if (this._PDFBug) {
        return
      }
      const {
        PDFBug
      } = await import(/*webpackIgnore: true*/AppOptions.get("debuggerSrc"))
      this._PDFBug = PDFBug
    }
    if (params.get("disableworker") === "true") {
      try {
        GlobalWorkerOptions.workerSrc ||= AppOptions.get("workerSrc")
        await import(/*webpackIgnore: true*/PDFWorker.workerSrc)
      } catch (ex) {
        console.error("_parseHashParams:", ex)
      }
    }
    if (params.has("textlayer")) {
      switch (params.get("textlayer")) {
        case "off":
          AppOptions.set("textLayerMode", TextLayerMode.DISABLE)
          break
        case "visible":
        case "shadow":
        case "hover":
          viewerContainer.classList.add(`textLayer-${params.get("textlayer")}`)
          try {
            await loadPDFBug()
            this._PDFBug.loadCSS()
          } catch (ex) {
            console.error("_parseHashParams:", ex)
          }
          break
      }
    }
    if (params.has("pdfbug")) {
      AppOptions.setAll({
        pdfBug: true,
        fontExtraProperties: true
      })
      const enabled = params.get("pdfbug").split(",")
      try {
        await loadPDFBug()
        this._PDFBug.init(mainContainer, enabled)
      } catch (ex) {
        console.error("_parseHashParams:", ex)
      }
    }
    if (params.has("locale")) {
      AppOptions.set("localeProperties", {
        lang: params.get("locale")
      })
    }
    const opts = {
      disableAutoFetch: x => x === "true",
      disableFontFace: x => x === "true",
      disableHistory: x => x === "true",
      disableRange: x => x === "true",
      disableStream: x => x === "true",
      verbosity: x => x | 0
    }
    for (const name in opts) {
      const check = opts[name],
        key = name.toLowerCase()
      if (params.has(key)) {
        AppOptions.set(name, check(params.get(key)))
      }
    }
  },
  async _initializeViewerComponents () {
    const {
      appConfig,
      externalServices,
      l10n
    } = this
    const eventBus = new EventBus()
    this.eventBus = AppOptions.eventBus = eventBus
    this.mlManager?.setEventBus(eventBus, this._globalAbortController.signal)
    this.overlayManager = new OverlayManager()
    const pdfRenderingQueue = new PDFRenderingQueue()
    pdfRenderingQueue.onIdle = this._cleanup.bind(this)
    this.pdfRenderingQueue = pdfRenderingQueue
    const pdfLinkService = new PDFLinkService({
      eventBus,
      externalLinkTarget: AppOptions.get("externalLinkTarget"),
      externalLinkRel: AppOptions.get("externalLinkRel"),
      ignoreDestinationZoom: AppOptions.get("ignoreDestinationZoom")
    })
    this.pdfLinkService = pdfLinkService
    const downloadManager = this.downloadManager = new DownloadManager()
    const findController = new PDFFindController({
      linkService: pdfLinkService,
      eventBus,
      updateMatchesCountOnProgress: true
    })
    this.findController = findController
    const pdfScriptingManager = new PDFScriptingManager({
      eventBus,
      externalServices,
      docProperties: this._scriptingDocProperties.bind(this)
    })
    this.pdfScriptingManager = pdfScriptingManager
    const container = appConfig.mainContainer,
      viewer = appConfig.viewerContainer
    const annotationEditorMode = AppOptions.get("annotationEditorMode")
    const pageColors = AppOptions.get("forcePageColors") || window.matchMedia("(forced-colors: active)").matches ? {
      background: AppOptions.get("pageColorsBackground"),
      foreground: AppOptions.get("pageColorsForeground")
    } : null
    let altTextManager
    if (AppOptions.get("enableUpdatedAddImage")) {
      altTextManager = appConfig.newAltTextDialog ? new NewAltTextManager(appConfig.newAltTextDialog, this.overlayManager, eventBus) : null
    } else {
      altTextManager = appConfig.altTextDialog ? new AltTextManager(appConfig.altTextDialog, container, this.overlayManager, eventBus) : null
    }
    if (appConfig.editorUndoBar) {
      this.editorUndoBar = new EditorUndoBar(appConfig.editorUndoBar, eventBus)
    }
    const enableHWA = AppOptions.get("enableHWA")
    const pdfViewer = new PDFViewer({
      container,
      viewer,
      eventBus,
      renderingQueue: pdfRenderingQueue,
      linkService: pdfLinkService,
      downloadManager,
      altTextManager,
      editorUndoBar: this.editorUndoBar,
      findController,
      scriptingManager: AppOptions.get("enableScripting") && pdfScriptingManager,
      l10n,
      textLayerMode: AppOptions.get("textLayerMode"),
      annotationMode: AppOptions.get("annotationMode"),
      annotationEditorMode,
      annotationEditorHighlightColors: AppOptions.get("highlightEditorColors"),
      enableHighlightFloatingButton: AppOptions.get("enableHighlightFloatingButton"),
      enableUpdatedAddImage: AppOptions.get("enableUpdatedAddImage"),
      enableNewAltTextWhenAddingImage: AppOptions.get("enableNewAltTextWhenAddingImage"),
      imageResourcesPath: AppOptions.get("imageResourcesPath"),
      enablePrintAutoRotate: AppOptions.get("enablePrintAutoRotate"),
      maxCanvasPixels: AppOptions.get("maxCanvasPixels"),
      enablePermissions: AppOptions.get("enablePermissions"),
      pageColors,
      mlManager: this.mlManager,
      abortSignal: this._globalAbortController.signal,
      enableHWA,
      supportsPinchToZoom: this.supportsPinchToZoom
    })
    this.pdfViewer = pdfViewer
    pdfRenderingQueue.setViewer(pdfViewer)
    pdfLinkService.setViewer(pdfViewer)
    pdfScriptingManager.setViewer(pdfViewer)
    if (appConfig.sidebar?.thumbnailView) {
      this.pdfThumbnailViewer = new PDFThumbnailViewer({
        container: appConfig.sidebar.thumbnailView,
        eventBus,
        renderingQueue: pdfRenderingQueue,
        linkService: pdfLinkService,
        pageColors,
        abortSignal: this._globalAbortController.signal,
        enableHWA
      })
      pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer)
    }
    if (!this.isViewerEmbedded && !AppOptions.get("disableHistory")) {
      this.pdfHistory = new PDFHistory({
        linkService: pdfLinkService,
        eventBus
      })
      pdfLinkService.setHistory(this.pdfHistory)
    }
    if (!this.supportsIntegratedFind && appConfig.findBar) {
      this.findBar = new PDFFindBar(appConfig.findBar, appConfig.principalContainer, eventBus)
    }
    if (appConfig.annotationEditorParams) {
      if (typeof AbortSignal.any === "function" && annotationEditorMode !== AnnotationEditorType.DISABLE) {
        this.annotationEditorParams = new AnnotationEditorParams(appConfig.annotationEditorParams, eventBus)
      } else {
        for (const id of ["editorModeButtons", "editorModeSeparator"]) {
          document.getElementById(id)?.classList.add("hidden")
        }
      }
    }
    if (this.mlManager && appConfig.secondaryToolbar?.imageAltTextSettingsButton) {
      this.imageAltTextSettings = new ImageAltTextSettings(appConfig.altTextSettingsDialog, this.overlayManager, eventBus, this.mlManager)
    }
    if (appConfig.documentProperties) {
      this.pdfDocumentProperties = new PDFDocumentProperties(appConfig.documentProperties, this.overlayManager, eventBus, l10n, () => this._docFilename)
    }
    if (appConfig.secondaryToolbar?.cursorHandToolButton) {
      this.pdfCursorTools = new PDFCursorTools({
        container,
        eventBus,
        cursorToolOnLoad: AppOptions.get("cursorToolOnLoad")
      })
    }
    if (appConfig.toolbar) {
      this.toolbar = new Toolbar(appConfig.toolbar, eventBus, AppOptions.get("toolbarDensity"))
    }
    if (appConfig.secondaryToolbar) {
      if (AppOptions.get("enableAltText")) {
        appConfig.secondaryToolbar.imageAltTextSettingsButton?.classList.remove("hidden")
        appConfig.secondaryToolbar.imageAltTextSettingsSeparator?.classList.remove("hidden")
      }
      this.secondaryToolbar = new SecondaryToolbar(appConfig.secondaryToolbar, eventBus)
    }
    if (this.supportsFullscreen && appConfig.secondaryToolbar?.presentationModeButton) {
      this.pdfPresentationMode = new PDFPresentationMode({
        container,
        pdfViewer,
        eventBus
      })
    }
    if (appConfig.passwordOverlay) {
      this.passwordPrompt = new PasswordPrompt(appConfig.passwordOverlay, this.overlayManager, this.isViewerEmbedded)
    }
    if (appConfig.sidebar?.outlineView) {
      this.pdfOutlineViewer = new PDFOutlineViewer({
        container: appConfig.sidebar.outlineView,
        eventBus,
        l10n,
        linkService: pdfLinkService,
        downloadManager
      })
    }
    if (appConfig.sidebar?.attachmentsView) {
      this.pdfAttachmentViewer = new PDFAttachmentViewer({
        container: appConfig.sidebar.attachmentsView,
        eventBus,
        l10n,
        downloadManager
      })
    }
    if (appConfig.sidebar?.layersView) {
      this.pdfLayerViewer = new PDFLayerViewer({
        container: appConfig.sidebar.layersView,
        eventBus,
        l10n
      })
    }
    if (appConfig.sidebar) {
      this.pdfSidebar = new PDFSidebar({
        elements: appConfig.sidebar,
        eventBus,
        l10n
      })
      this.pdfSidebar.onToggled = this.forceRendering.bind(this)
      this.pdfSidebar.onUpdateThumbnails = () => {
        for (const pageView of pdfViewer.getCachedPageViews()) {
          if (pageView.renderingState === RenderingStates.FINISHED) {
            this.pdfThumbnailViewer.getThumbnail(pageView.id - 1)?.setImage(pageView)
          }
        }
        this.pdfThumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber)
      }
    }
  },
  async run (config) {
    await this.initialize(config)
    const {
      appConfig,
      eventBus
    } = this
    let file
    const queryString = document.location.search.substring(1)
    const params = parseQueryString(queryString)
    file = params.get("file") ?? AppOptions.get("defaultUrl")
    validateFileURL(file)
    const fileInput = this._openFileInput = document.createElement("input")
    fileInput.id = "fileInput"
    fileInput.hidden = true
    fileInput.type = "file"
    fileInput.value = null
    document.body.append(fileInput)
    fileInput.addEventListener("change", function (evt) {
      const {
        files
      } = evt.target
      if (!files || files.length === 0) {
        return
      }
      eventBus.dispatch("fileinputchange", {
        source: this,
        fileInput: evt.target
      })
    })
    appConfig.mainContainer.addEventListener("dragover", function (evt) {
      for (const item of evt.dataTransfer.items) {
        if (item.type === "application/pdf") {
          evt.dataTransfer.dropEffect = evt.dataTransfer.effectAllowed === "copy" ? "copy" : "move"
          stopEvent(evt)
          return
        }
      }
    })
    appConfig.mainContainer.addEventListener("drop", function (evt) {
      if (evt.dataTransfer.files?.[0].type !== "application/pdf") {
        return
      }
      stopEvent(evt)
      eventBus.dispatch("fileinputchange", {
        source: this,
        fileInput: evt.dataTransfer
      })
    })
    if (!AppOptions.get("supportsDocumentFonts")) {
      AppOptions.set("disableFontFace", true)
      this.l10n.get("pdfjs-web-fonts-disabled").then(msg => {
        console.warn(msg)
      })
    }
    if (!this.supportsPrinting) {
      appConfig.toolbar?.print?.classList.add("hidden")
      appConfig.secondaryToolbar?.printButton.classList.add("hidden")
    }
    if (!this.supportsFullscreen) {
      appConfig.secondaryToolbar?.presentationModeButton.classList.add("hidden")
    }
    if (this.supportsIntegratedFind) {
      appConfig.findBar?.toggleButton?.classList.add("hidden")
    }
    if (file) {
      this.open({
        url: file
      })
    } else {
      this._hideViewBookmark()
    }
  },
  get externalServices () {
    return shadow(this, "externalServices", new ExternalServices())
  },
  get initialized () {
    return this._initializedCapability.settled
  },
  get initializedPromise () {
    return this._initializedCapability.promise
  },
  updateZoom (steps, scaleFactor, origin) {
    if (this.pdfViewer.isInPresentationMode) {
      return
    }
    this.pdfViewer.updateScale({
      drawingDelay: AppOptions.get("defaultZoomDelay"),
      steps,
      scaleFactor,
      origin
    })
  },
  zoomIn () {
    this.updateZoom(1)
  },
  zoomOut () {
    this.updateZoom(-1)
  },
  zoomReset () {
    if (this.pdfViewer.isInPresentationMode) {
      return
    }
    this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE
  },
  touchPinchCallback (origin, prevDistance, distance) {
    if (this.supportsPinchToZoom) {
      const newScaleFactor = this._accumulateFactor(this.pdfViewer.currentScale, distance / prevDistance, "_touchUnusedFactor")
      this.updateZoom(null, newScaleFactor, origin)
    } else {
      const PIXELS_PER_LINE_SCALE = 30
      const ticks = this._accumulateTicks((distance - prevDistance) / PIXELS_PER_LINE_SCALE, "_touchUnusedTicks")
      this.updateZoom(ticks, null, origin)
    }
  },
  touchPinchEndCallback () {
    this._touchUnusedTicks = 0
    this._touchUnusedFactor = 1
  },
  get pagesCount () {
    return this.pdfDocument ? this.pdfDocument.numPages : 0
  },
  get page () {
    return this.pdfViewer.currentPageNumber
  },
  set page (val) {
    this.pdfViewer.currentPageNumber = val
  },
  get supportsPrinting () {
    return PDFPrintServiceFactory.supportsPrinting
  },
  get supportsFullscreen () {
    return shadow(this, "supportsFullscreen", document.fullscreenEnabled)
  },
  get supportsPinchToZoom () {
    return shadow(this, "supportsPinchToZoom", AppOptions.get("supportsPinchToZoom"))
  },
  get supportsIntegratedFind () {
    return shadow(this, "supportsIntegratedFind", AppOptions.get("supportsIntegratedFind"))
  },
  get loadingBar () {
    const barElement = document.getElementById("loadingBar")
    const bar = barElement ? new ProgressBar(barElement) : null
    return shadow(this, "loadingBar", bar)
  },
  get supportsMouseWheelZoomCtrlKey () {
    return shadow(this, "supportsMouseWheelZoomCtrlKey", AppOptions.get("supportsMouseWheelZoomCtrlKey"))
  },
  get supportsMouseWheelZoomMetaKey () {
    return shadow(this, "supportsMouseWheelZoomMetaKey", AppOptions.get("supportsMouseWheelZoomMetaKey"))
  },
  get supportsCaretBrowsingMode () {
    return AppOptions.get("supportsCaretBrowsingMode")
  },
  moveCaret (isUp, select) {
    this._caretBrowsing ||= new CaretBrowsingMode(this._globalAbortController.signal, this.appConfig.mainContainer, this.appConfig.viewerContainer, this.appConfig.toolbar?.container)
    this._caretBrowsing.moveCaret(isUp, select)
  },
  setTitleUsingUrl (url = "", downloadUrl = null) {
    this.url = url
    this.baseUrl = url.split("#", 1)[0]
    if (downloadUrl) {
      this._downloadUrl = downloadUrl === url ? this.baseUrl : downloadUrl.split("#", 1)[0]
    }
    if (isDataScheme(url)) {
      this._hideViewBookmark()
    }
    let title = pdfjs_getPdfFilenameFromUrl(url, "")
    if (!title) {
      try {
        title = decodeURIComponent(getFilenameFromUrl(url))
      } catch { }
    }
    this.setTitle(title || url)
  },
  setTitle (title = this._title) {
    this._title = title
    if (this.isViewerEmbedded) {
      return
    }
    const editorIndicator = this._hasAnnotationEditors && !this.pdfRenderingQueue.printing
    document.title = `${editorIndicator ? "* " : ""}${title}`
  },
  get _docFilename () {
    return this._contentDispositionFilename || pdfjs_getPdfFilenameFromUrl(this.url)
  },
  _hideViewBookmark () {
    const {
      secondaryToolbar
    } = this.appConfig
    secondaryToolbar?.viewBookmarkButton.classList.add("hidden")
    if (secondaryToolbar?.presentationModeButton.classList.contains("hidden")) {
      document.getElementById("viewBookmarkSeparator")?.classList.add("hidden")
    }
  },
  async close () {
    this._unblockDocumentLoadEvent()
    this._hideViewBookmark()
    if (!this.pdfLoadingTask) {
      return
    }
    if (this.pdfDocument?.annotationStorage.size > 0 && this._annotationStorageModified) {
      try {
        await this.save()
      } catch { }
    }
    const promises = []
    promises.push(this.pdfLoadingTask.destroy())
    this.pdfLoadingTask = null
    if (this.pdfDocument) {
      this.pdfDocument = null
      this.pdfThumbnailViewer?.setDocument(null)
      this.pdfViewer.setDocument(null)
      this.pdfLinkService.setDocument(null)
      this.pdfDocumentProperties?.setDocument(null)
    }
    this.pdfLinkService.externalLinkEnabled = true
    this.store = null
    this.isInitialViewSet = false
    this.url = ""
    this.baseUrl = ""
    this._downloadUrl = ""
    this.documentInfo = null
    this.metadata = null
    this._contentDispositionFilename = null
    this._contentLength = null
    this._saveInProgress = false
    this._hasAnnotationEditors = false
    promises.push(this.pdfScriptingManager.destroyPromise, this.passwordPrompt.close())
    this.setTitle()
    this.pdfSidebar?.reset()
    this.pdfOutlineViewer?.reset()
    this.pdfAttachmentViewer?.reset()
    this.pdfLayerViewer?.reset()
    this.pdfHistory?.reset()
    this.findBar?.reset()
    this.toolbar?.reset()
    this.secondaryToolbar?.reset()
    this._PDFBug?.cleanup()
    await Promise.all(promises)
  },
  async open (args) {
    if (this.pdfLoadingTask) {
      await this.close()
    }
    const workerParams = AppOptions.getAll(OptionKind.WORKER)
    Object.assign(GlobalWorkerOptions, workerParams)
    if (args.url) {
      this.setTitleUsingUrl(args.originalUrl || args.url, args.url)
    }
    const apiParams = AppOptions.getAll(OptionKind.API)
    const loadingTask = getDocument({
      ...apiParams,
      ...args
    })
    this.pdfLoadingTask = loadingTask
    loadingTask.onPassword = (updateCallback, reason) => {
      if (this.isViewerEmbedded) {
        this._unblockDocumentLoadEvent()
      }
      this.pdfLinkService.externalLinkEnabled = false
      this.passwordPrompt.setUpdateCallback(updateCallback, reason)
      this.passwordPrompt.open()
    }
    loadingTask.onProgress = ({
      loaded,
      total
    }) => {
      this.progress(loaded / total)
    }
    return loadingTask.promise.then(pdfDocument => {
      this.load(pdfDocument)
    }, reason => {
      if (loadingTask !== this.pdfLoadingTask) {
        return undefined
      }
      let key = "pdfjs-loading-error"
      if (reason instanceof InvalidPDFException) {
        key = "pdfjs-invalid-file-error"
      } else if (reason instanceof MissingPDFException) {
        key = "pdfjs-missing-file-error"
      } else if (reason instanceof UnexpectedResponseException) {
        key = "pdfjs-unexpected-response-error"
      }
      return this._documentError(key, {
        message: reason.message
      }).then(() => {
        throw reason
      })
    })
  },
  async download () {
    let data
    try {
      data = await this.pdfDocument.getData()
    } catch { }
    this.downloadManager.download(data, this._downloadUrl, this._docFilename)
  },
  async save () {
    if (this._saveInProgress) {
      return
    }
    this._saveInProgress = true
    await this.pdfScriptingManager.dispatchWillSave()
    try {
      const data = await this.pdfDocument.saveDocument()
      this.downloadManager.download(data, this._downloadUrl, this._docFilename)
    } catch (reason) {
      console.error(`Error when saving the document:`, reason)
      await this.download()
    } finally {
      await this.pdfScriptingManager.dispatchDidSave()
      this._saveInProgress = false
    }
    if (this._hasAnnotationEditors) {
      this.externalServices.reportTelemetry({
        type: "editing",
        data: {
          type: "save",
          stats: this.pdfDocument?.annotationStorage.editorStats
        }
      })
    }
  },
  async downloadOrSave () {
    const {
      classList
    } = this.appConfig.appContainer
    classList.add("wait")
    await (this.pdfDocument?.annotationStorage.size > 0 ? this.save() : this.download())
    classList.remove("wait")
  },
  async _documentError (key, moreInfo = null) {
    this._unblockDocumentLoadEvent()
    const message = await this._otherError(key || "pdfjs-loading-error", moreInfo)
    this.eventBus.dispatch("documenterror", {
      source: this,
      message,
      reason: moreInfo?.message ?? null
    })
  },
  async _otherError (key, moreInfo = null) {
    const message = await this.l10n.get(key)
    const moreInfoText = [`PDF.js v${version || "?"} (build: ${build || "?"})`]
    if (moreInfo) {
      moreInfoText.push(`Message: ${moreInfo.message}`)
      if (moreInfo.stack) {
        moreInfoText.push(`Stack: ${moreInfo.stack}`)
      } else {
        if (moreInfo.filename) {
          moreInfoText.push(`File: ${moreInfo.filename}`)
        }
        if (moreInfo.lineNumber) {
          moreInfoText.push(`Line: ${moreInfo.lineNumber}`)
        }
      }
    }
    console.error(`${message}\n\n${moreInfoText.join("\n")}`)
    return message
  },
  progress (level) {
    const percent = Math.round(level * 100)
    if (!this.loadingBar || percent <= this.loadingBar.percent) {
      return
    }
    this.loadingBar.percent = percent
    if (this.pdfDocument?.loadingParams.disableAutoFetch ?? AppOptions.get("disableAutoFetch")) {
      this.loadingBar.setDisableAutoFetch()
    }
  },
  load (pdfDocument) {
    this.pdfDocument = pdfDocument
    pdfDocument.getDownloadInfo().then(({
      length
    }) => {
      this._contentLength = length
      this.loadingBar?.hide()
      firstPagePromise.then(() => {
        this.eventBus.dispatch("documentloaded", {
          source: this
        })
      })
    })
    const pageLayoutPromise = pdfDocument.getPageLayout().catch(() => { })
    const pageModePromise = pdfDocument.getPageMode().catch(() => { })
    const openActionPromise = pdfDocument.getOpenAction().catch(() => { })
    this.toolbar?.setPagesCount(pdfDocument.numPages, false)
    this.secondaryToolbar?.setPagesCount(pdfDocument.numPages)
    this.pdfLinkService.setDocument(pdfDocument)
    this.pdfDocumentProperties?.setDocument(pdfDocument)
    const pdfViewer = this.pdfViewer
    pdfViewer.setDocument(pdfDocument)
    const {
      firstPagePromise,
      onePageRendered,
      pagesPromise
    } = pdfViewer
    this.pdfThumbnailViewer?.setDocument(pdfDocument)
    const storedPromise = (this.store = new ViewHistory(pdfDocument.fingerprints[0])).getMultiple({
      page: null,
      zoom: DEFAULT_SCALE_VALUE,
      scrollLeft: "0",
      scrollTop: "0",
      rotation: null,
      sidebarView: SidebarView.UNKNOWN,
      scrollMode: ScrollMode.UNKNOWN,
      spreadMode: SpreadMode.UNKNOWN
    }).catch(() => { })
    firstPagePromise.then(pdfPage => {
      this.loadingBar?.setWidth(this.appConfig.viewerContainer)
      this._initializeAnnotationStorageCallbacks(pdfDocument)
      Promise.all([animationStarted, storedPromise, pageLayoutPromise, pageModePromise, openActionPromise]).then(async ([timeStamp, stored, pageLayout, pageMode, openAction]) => {
        const viewOnLoad = AppOptions.get("viewOnLoad")
        this._initializePdfHistory({
          fingerprint: pdfDocument.fingerprints[0],
          viewOnLoad,
          initialDest: openAction?.dest
        })
        const initialBookmark = this.initialBookmark
        const zoom = AppOptions.get("defaultZoomValue")
        let hash = zoom ? `zoom=${zoom}` : null
        let rotation = null
        let sidebarView = AppOptions.get("sidebarViewOnLoad")
        let scrollMode = AppOptions.get("scrollModeOnLoad")
        let spreadMode = AppOptions.get("spreadModeOnLoad")
        if (stored?.page && viewOnLoad !== ViewOnLoad.INITIAL) {
          hash = `page=${stored.page}&zoom=${zoom || stored.zoom},` + `${stored.scrollLeft},${stored.scrollTop}`
          rotation = parseInt(stored.rotation, 10)
          if (sidebarView === SidebarView.UNKNOWN) {
            sidebarView = stored.sidebarView | 0
          }
          if (scrollMode === ScrollMode.UNKNOWN) {
            scrollMode = stored.scrollMode | 0
          }
          if (spreadMode === SpreadMode.UNKNOWN) {
            spreadMode = stored.spreadMode | 0
          }
        }
        if (pageMode && sidebarView === SidebarView.UNKNOWN) {
          sidebarView = apiPageModeToSidebarView(pageMode)
        }
        if (pageLayout && scrollMode === ScrollMode.UNKNOWN && spreadMode === SpreadMode.UNKNOWN) {
          const modes = apiPageLayoutToViewerModes(pageLayout)
          spreadMode = modes.spreadMode
        }
        this.setInitialView(hash, {
          rotation,
          sidebarView,
          scrollMode,
          spreadMode
        })
        this.eventBus.dispatch("documentinit", {
          source: this
        })
        if (!this.isViewerEmbedded) {
          pdfViewer.focus()
        }
        await Promise.race([pagesPromise, new Promise(resolve => {
          setTimeout(resolve, FORCE_PAGES_LOADED_TIMEOUT)
        })])
        if (!initialBookmark && !hash) {
          return
        }
        if (pdfViewer.hasEqualPageSizes) {
          return
        }
        this.initialBookmark = initialBookmark
        pdfViewer.currentScaleValue = pdfViewer.currentScaleValue
        this.setInitialView(hash)
      }).catch(() => {
        this.setInitialView()
      }).then(function () {
        pdfViewer.update()
      })
    })
    pagesPromise.then(() => {
      this._unblockDocumentLoadEvent()
      this._initializeAutoPrint(pdfDocument, openActionPromise)
    }, reason => {
      this._documentError("pdfjs-loading-error", {
        message: reason.message
      })
    })
    onePageRendered.then(data => {
      this.externalServices.reportTelemetry({
        type: "pageInfo",
        timestamp: data.timestamp
      })
      if (this.pdfOutlineViewer) {
        pdfDocument.getOutline().then(outline => {
          if (pdfDocument !== this.pdfDocument) {
            return
          }
          this.pdfOutlineViewer.render({
            outline,
            pdfDocument
          })
        })
      }
      if (this.pdfAttachmentViewer) {
        pdfDocument.getAttachments().then(attachments => {
          if (pdfDocument !== this.pdfDocument) {
            return
          }
          this.pdfAttachmentViewer.render({
            attachments
          })
        })
      }
      if (this.pdfLayerViewer) {
        pdfViewer.optionalContentConfigPromise.then(optionalContentConfig => {
          if (pdfDocument !== this.pdfDocument) {
            return
          }
          this.pdfLayerViewer.render({
            optionalContentConfig,
            pdfDocument
          })
        })
      }
    })
    this._initializePageLabels(pdfDocument)
    this._initializeMetadata(pdfDocument)
  },
  async _scriptingDocProperties (pdfDocument) {
    if (!this.documentInfo) {
      await new Promise(resolve => {
        this.eventBus._on("metadataloaded", resolve, {
          once: true
        })
      })
      if (pdfDocument !== this.pdfDocument) {
        return null
      }
    }
    if (!this._contentLength) {
      await new Promise(resolve => {
        this.eventBus._on("documentloaded", resolve, {
          once: true
        })
      })
      if (pdfDocument !== this.pdfDocument) {
        return null
      }
    }
    return {
      ...this.documentInfo,
      baseURL: this.baseUrl,
      filesize: this._contentLength,
      filename: this._docFilename,
      metadata: this.metadata?.getRaw(),
      authors: this.metadata?.get("dc:creator"),
      numPages: this.pagesCount,
      URL: this.url
    }
  },
  async _initializeAutoPrint (pdfDocument, openActionPromise) {
    const [openAction, jsActions] = await Promise.all([openActionPromise, this.pdfViewer.enableScripting ? null : pdfDocument.getJSActions()])
    if (pdfDocument !== this.pdfDocument) {
      return
    }
    let triggerAutoPrint = openAction?.action === "Print"
    if (jsActions) {
      console.warn("Warning: JavaScript support is not enabled")
      for (const name in jsActions) {
        if (triggerAutoPrint) {
          break
        }
        switch (name) {
          case "WillClose":
          case "WillSave":
          case "DidSave":
          case "WillPrint":
          case "DidPrint":
            continue
        }
        triggerAutoPrint = jsActions[name].some(js => AutoPrintRegExp.test(js))
      }
    }
    if (triggerAutoPrint) {
      this.triggerPrinting()
    }
  },
  async _initializeMetadata (pdfDocument) {
    const {
      info,
      metadata,
      contentDispositionFilename,
      contentLength
    } = await pdfDocument.getMetadata()
    if (pdfDocument !== this.pdfDocument) {
      return
    }
    this.documentInfo = info
    this.metadata = metadata
    this._contentDispositionFilename ??= contentDispositionFilename
    this._contentLength ??= contentLength
    console.log(`PDF ${pdfDocument.fingerprints[0]} [${info.PDFFormatVersion} ` + `${(info.Producer || "-").trim()} / ${(info.Creator || "-").trim()}] ` + `(PDF.js: ${version || "?"} [${build || "?"}])`)
    let pdfTitle = info.Title
    const metadataTitle = metadata?.get("dc:title")
    if (metadataTitle) {
      if (metadataTitle !== "Untitled" && !/[\uFFF0-\uFFFF]/g.test(metadataTitle)) {
        pdfTitle = metadataTitle
      }
    }
    if (pdfTitle) {
      this.setTitle(`${pdfTitle} - ${this._contentDispositionFilename || this._title}`)
    } else if (this._contentDispositionFilename) {
      this.setTitle(this._contentDispositionFilename)
    }
    if (info.IsXFAPresent && !info.IsAcroFormPresent && !pdfDocument.isPureXfa) {
      if (pdfDocument.loadingParams.enableXfa) {
        console.warn("Warning: XFA Foreground documents are not supported")
      } else {
        console.warn("Warning: XFA support is not enabled")
      }
    } else if ((info.IsAcroFormPresent || info.IsXFAPresent) && !this.pdfViewer.renderForms) {
      console.warn("Warning: Interactive form support is not enabled")
    }
    if (info.IsSignaturesPresent) {
      console.warn("Warning: Digital signatures validation is not supported")
    }
    this.eventBus.dispatch("metadataloaded", {
      source: this
    })
  },
  async _initializePageLabels (pdfDocument) {
    const labels = await pdfDocument.getPageLabels()
    if (pdfDocument !== this.pdfDocument) {
      return
    }
    if (!labels || AppOptions.get("disablePageLabels")) {
      return
    }
    const numLabels = labels.length
    let standardLabels = 0,
      emptyLabels = 0
    for (let i = 0; i < numLabels; i++) {
      const label = labels[i]
      if (label === (i + 1).toString()) {
        standardLabels++
      } else if (label === "") {
        emptyLabels++
      } else {
        break
      }
    }
    if (standardLabels >= numLabels || emptyLabels >= numLabels) {
      return
    }
    const {
      pdfViewer,
      pdfThumbnailViewer,
      toolbar
    } = this
    pdfViewer.setPageLabels(labels)
    pdfThumbnailViewer?.setPageLabels(labels)
    toolbar?.setPagesCount(numLabels, true)
    toolbar?.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel)
  },
  _initializePdfHistory ({
    fingerprint,
    viewOnLoad,
    initialDest = null
  }) {
    if (!this.pdfHistory) {
      return
    }
    this.pdfHistory.initialize({
      fingerprint,
      resetHistory: viewOnLoad === ViewOnLoad.INITIAL,
      updateUrl: AppOptions.get("historyUpdateUrl")
    })
    if (this.pdfHistory.initialBookmark) {
      this.initialBookmark = this.pdfHistory.initialBookmark
      this.initialRotation = this.pdfHistory.initialRotation
    }
    if (initialDest && !this.initialBookmark && viewOnLoad === ViewOnLoad.UNKNOWN) {
      this.initialBookmark = JSON.stringify(initialDest)
      this.pdfHistory.push({
        explicitDest: initialDest,
        pageNumber: null
      })
    }
  },
  _initializeAnnotationStorageCallbacks (pdfDocument) {
    if (pdfDocument !== this.pdfDocument) {
      return
    }
    const {
      annotationStorage
    } = pdfDocument
    annotationStorage.onSetModified = () => {
      window.addEventListener("beforeunload", beforeUnload)
      this._annotationStorageModified = true
    }
    annotationStorage.onResetModified = () => {
      window.removeEventListener("beforeunload", beforeUnload)
      delete this._annotationStorageModified
    }
    annotationStorage.onAnnotationEditor = typeStr => {
      this._hasAnnotationEditors = !!typeStr
      this.setTitle()
    }
  },
  setInitialView (storedHash, {
    rotation,
    sidebarView,
    scrollMode,
    spreadMode
  } = {}) {
    const setRotation = angle => {
      if (isValidRotation(angle)) {
        this.pdfViewer.pagesRotation = angle
      }
    }
    const setViewerModes = (scroll, spread) => {
      if (isValidScrollMode(scroll)) {
        this.pdfViewer.scrollMode = scroll
      }
      if (isValidSpreadMode(spread)) {
        this.pdfViewer.spreadMode = spread
      }
    }
    this.isInitialViewSet = true
    this.pdfSidebar?.setInitialView(sidebarView)
    setViewerModes(scrollMode, spreadMode)
    if (this.initialBookmark) {
      setRotation(this.initialRotation)
      delete this.initialRotation
      this.pdfLinkService.setHash(this.initialBookmark)
      this.initialBookmark = null
    } else if (storedHash) {
      setRotation(rotation)
      this.pdfLinkService.setHash(storedHash)
    }
    this.toolbar?.setPageNumber(this.pdfViewer.currentPageNumber, this.pdfViewer.currentPageLabel)
    this.secondaryToolbar?.setPageNumber(this.pdfViewer.currentPageNumber)
    if (!this.pdfViewer.currentScaleValue) {
      this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE
    }
    console.log(this.pdfViewer)
    // 获取url参数
    function getQueryVariable (variable) {
      var query = window.location.search.substring(1)
      var vars = query.split('&')
      for (var i = 0; i < vars.length; i++) {
        var pair = vars[i].split('=')
        if (pair[0] == variable) {
          return pair[1]
        }
      }
      return false
    }
    // 跳转到指定页
    const page = getQueryVariable('page')
    console.log(page)
    if (page) {
      this.pdfViewer.currentPageNumber = Number(page)
    }
//获取链接
var urlPath=decodeURIComponent(window.location.href);
var index=urlPath.indexOf("&keyword");
//获取关键词
var keyword=urlPath.substr(index+9);
//对查询输入框进行赋值
document.getElementById("findInput").value=keyword;
//点击高亮按钮实现高亮显示关键词
document.getElementById("findHighlightAll").click();
  },
  _cleanup () {
    if (!this.pdfDocument) {
      return
    }
    this.pdfViewer.cleanup()
    this.pdfThumbnailViewer?.cleanup()
    this.pdfDocument.cleanup(AppOptions.get("fontExtraProperties"))
  },
  forceRendering () {
    this.pdfRenderingQueue.printing = !!this.printService
    this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar?.visibleView === SidebarView.THUMBS
    this.pdfRenderingQueue.renderHighestPriority()
  },
  beforePrint () {
    this._printAnnotationStoragePromise = this.pdfScriptingManager.dispatchWillPrint().catch(() => { }).then(() => this.pdfDocument?.annotationStorage.print)
    if (this.printService) {
      return
    }
    if (!this.supportsPrinting) {
      this._otherError("pdfjs-printing-not-supported")
      return
    }
    if (!this.pdfViewer.pageViewsReady) {
      this.l10n.get("pdfjs-printing-not-ready").then(msg => {
        window.alert(msg)
      })
      return
    }
    this.printService = PDFPrintServiceFactory.createPrintService({
      pdfDocument: this.pdfDocument,
      pagesOverview: this.pdfViewer.getPagesOverview(),
      printContainer: this.appConfig.printContainer,
      printResolution: AppOptions.get("printResolution"),
      printAnnotationStoragePromise: this._printAnnotationStoragePromise
    })
    this.forceRendering()
    this.setTitle()
    this.printService.layout()
    if (this._hasAnnotationEditors) {
      this.externalServices.reportTelemetry({
        type: "editing",
        data: {
          type: "print",
          stats: this.pdfDocument?.annotationStorage.editorStats
        }
      })
    }
  },
  afterPrint () {
    if (this._printAnnotationStoragePromise) {
      this._printAnnotationStoragePromise.then(() => {
        this.pdfScriptingManager.dispatchDidPrint()
      })
      this._printAnnotationStoragePromise = null
    }
    if (this.printService) {
      this.printService.destroy()
      this.printService = null
      this.pdfDocument?.annotationStorage.resetModified()
    }
    this.forceRendering()
    this.setTitle()
  },
  rotatePages (delta) {
    this.pdfViewer.pagesRotation += delta
  },
  requestPresentationMode () {
    this.pdfPresentationMode?.request()
  },
  triggerPrinting () {
    if (this.supportsPrinting) {
      window.print()
    }
  },
  bindEvents () {
    if (this._eventBusAbortController) {
      return
    }
    const ac = this._eventBusAbortController = new AbortController()
    const opts = {
      signal: ac.signal
    }
    const {
      eventBus,
      externalServices,
      pdfDocumentProperties,
      pdfViewer,
      preferences
    } = this
    eventBus._on("resize", onResize.bind(this), opts)
    eventBus._on("hashchange", onHashchange.bind(this), opts)
    eventBus._on("beforeprint", this.beforePrint.bind(this), opts)
    eventBus._on("afterprint", this.afterPrint.bind(this), opts)
    eventBus._on("pagerender", onPageRender.bind(this), opts)
    eventBus._on("pagerendered", onPageRendered.bind(this), opts)
    eventBus._on("updateviewarea", onUpdateViewarea.bind(this), opts)
    eventBus._on("pagechanging", onPageChanging.bind(this), opts)
    eventBus._on("scalechanging", onScaleChanging.bind(this), opts)
    eventBus._on("rotationchanging", onRotationChanging.bind(this), opts)
    eventBus._on("sidebarviewchanged", onSidebarViewChanged.bind(this), opts)
    eventBus._on("pagemode", onPageMode.bind(this), opts)
    eventBus._on("namedaction", onNamedAction.bind(this), opts)
    eventBus._on("presentationmodechanged", evt => pdfViewer.presentationModeState = evt.state, opts)
    eventBus._on("presentationmode", this.requestPresentationMode.bind(this), opts)
    eventBus._on("switchannotationeditormode", evt => pdfViewer.annotationEditorMode = evt, opts)
    eventBus._on("print", this.triggerPrinting.bind(this), opts)
    eventBus._on("download", this.downloadOrSave.bind(this), opts)
    eventBus._on("firstpage", () => this.page = 1, opts)
    eventBus._on("lastpage", () => this.page = this.pagesCount, opts)
    eventBus._on("nextpage", () => pdfViewer.nextPage(), opts)
    eventBus._on("previouspage", () => pdfViewer.previousPage(), opts)
    eventBus._on("zoomin", this.zoomIn.bind(this), opts)
    eventBus._on("zoomout", this.zoomOut.bind(this), opts)
    eventBus._on("zoomreset", this.zoomReset.bind(this), opts)
    eventBus._on("pagenumberchanged", onPageNumberChanged.bind(this), opts)
    eventBus._on("scalechanged", evt => pdfViewer.currentScaleValue = evt.value, opts)
    eventBus._on("rotatecw", this.rotatePages.bind(this, 90), opts)
    eventBus._on("rotateccw", this.rotatePages.bind(this, -90), opts)
    eventBus._on("optionalcontentconfig", evt => pdfViewer.optionalContentConfigPromise = evt.promise, opts)
    eventBus._on("switchscrollmode", evt => pdfViewer.scrollMode = evt.mode, opts)
    eventBus._on("scrollmodechanged", onViewerModesChanged.bind(this, "scrollMode"), opts)
    eventBus._on("switchspreadmode", evt => pdfViewer.spreadMode = evt.mode, opts)
    eventBus._on("spreadmodechanged", onViewerModesChanged.bind(this, "spreadMode"), opts)
    eventBus._on("imagealttextsettings", onImageAltTextSettings.bind(this), opts)
    eventBus._on("documentproperties", () => pdfDocumentProperties?.open(), opts)
    eventBus._on("findfromurlhash", onFindFromUrlHash.bind(this), opts)
    eventBus._on("updatefindmatchescount", onUpdateFindMatchesCount.bind(this), opts)
    eventBus._on("updatefindcontrolstate", onUpdateFindControlState.bind(this), opts)
    eventBus._on("fileinputchange", onFileInputChange.bind(this), opts)
    eventBus._on("openfile", onOpenFile.bind(this), opts)
  },
  bindWindowEvents () {
    if (this._windowAbortController) {
      return
    }
    this._windowAbortController = new AbortController()
    const {
      eventBus,
      appConfig: {
        mainContainer
      },
      pdfViewer,
      _windowAbortController: {
        signal
      }
    } = this
    if (typeof AbortSignal.any === "function") {
      this._touchManager = new TouchManager({
        container: window,
        isPinchingDisabled: () => pdfViewer.isInPresentationMode,
        isPinchingStopped: () => this.overlayManager?.active,
        onPinching: this.touchPinchCallback.bind(this),
        onPinchEnd: this.touchPinchEndCallback.bind(this),
        signal
      })
    }
    function addWindowResolutionChange (evt = null) {
      if (evt) {
        pdfViewer.refresh()
      }
      const mediaQueryList = window.matchMedia(`(resolution: ${window.devicePixelRatio || 1}dppx)`)
      mediaQueryList.addEventListener("change", addWindowResolutionChange, {
        once: true,
        signal
      })
    }
    addWindowResolutionChange()
    window.addEventListener("wheel", onWheel.bind(this), {
      passive: false,
      signal
    })
    window.addEventListener("click", onClick.bind(this), {
      signal
    })
    window.addEventListener("keydown", onKeyDown.bind(this), {
      signal
    })
    window.addEventListener("keyup", onKeyUp.bind(this), {
      signal
    })
    window.addEventListener("resize", () => eventBus.dispatch("resize", {
      source: window
    }), {
      signal
    })
    window.addEventListener("hashchange", () => {
      eventBus.dispatch("hashchange", {
        source: window,
        hash: document.location.hash.substring(1)
      })
    }, {
      signal
    })
    window.addEventListener("beforeprint", () => eventBus.dispatch("beforeprint", {
      source: window
    }), {
      signal
    })
    window.addEventListener("afterprint", () => eventBus.dispatch("afterprint", {
      source: window
    }), {
      signal
    })
    window.addEventListener("updatefromsandbox", evt => {
      eventBus.dispatch("updatefromsandbox", {
        source: window,
        detail: evt.detail
      })
    }, {
      signal
    })
    if (!("onscrollend" in document.documentElement)) {
      return
    }
    ({
      scrollTop: this._lastScrollTop,
      scrollLeft: this._lastScrollLeft
    } = mainContainer)
    const scrollend = () => {
      ({
        scrollTop: this._lastScrollTop,
        scrollLeft: this._lastScrollLeft
      } = mainContainer)
      this._isScrolling = false
      mainContainer.addEventListener("scroll", scroll, {
        passive: true,
        signal
      })
      mainContainer.removeEventListener("scrollend", scrollend)
      mainContainer.removeEventListener("blur", scrollend)
    }
    const scroll = () => {
      if (this._isCtrlKeyDown) {
        return
      }
      if (this._lastScrollTop === mainContainer.scrollTop && this._lastScrollLeft === mainContainer.scrollLeft) {
        return
      }
      mainContainer.removeEventListener("scroll", scroll)
      this._isScrolling = true
      mainContainer.addEventListener("scrollend", scrollend, {
        signal
      })
      mainContainer.addEventListener("blur", scrollend, {
        signal
      })
    }
    mainContainer.addEventListener("scroll", scroll, {
      passive: true,
      signal
    })
  },
  unbindEvents () {
    this._eventBusAbortController?.abort()
    this._eventBusAbortController = null
  },
  unbindWindowEvents () {
    this._windowAbortController?.abort()
    this._windowAbortController = null
    this._touchManager = null
  },
  async testingClose () {
    this.unbindEvents()
    this.unbindWindowEvents()
    this._globalAbortController?.abort()
    this._globalAbortController = null
    this.findBar?.close()
    await Promise.all([this.l10n?.destroy(), this.close()])
  },
  _accumulateTicks (ticks, prop) {
    if (this[prop] > 0 && ticks < 0 || this[prop] < 0 && ticks > 0) {
      this[prop] = 0
    }
    this[prop] += ticks
    const wholeTicks = Math.trunc(this[prop])
    this[prop] -= wholeTicks
    return wholeTicks
  },
  _accumulateFactor (previousScale, factor, prop) {
    if (factor === 1) {
      return 1
    }
    if (this[prop] > 1 && factor < 1 || this[prop] < 1 && factor > 1) {
      this[prop] = 1
    }
    const newFactor = Math.floor(previousScale * factor * this[prop] * 100) / (100 * previousScale)
    this[prop] = factor / newFactor
    return newFactor
  },
  _unblockDocumentLoadEvent () {
    document.blockUnblockOnload?.(false)
    this._unblockDocumentLoadEvent = () => { }
  },
  get scriptingReady () {
    return this.pdfScriptingManager.ready
  }
}
initCom(PDFViewerApplication)
{
  PDFPrintServiceFactory.initGlobals(PDFViewerApplication)
}
{
  const HOSTED_VIEWER_ORIGINS = ["null", "http://mozilla.github.io", "https://mozilla.github.io"]
  var validateFileURL = function (file) {
    if (!file) {
      return
    }
    try {
      const viewerOrigin = new URL(window.location.href).origin || "null"
      if (HOSTED_VIEWER_ORIGINS.includes(viewerOrigin)) {
        return
      }
      const fileOrigin = new URL(file, window.location.href).origin
      // if (fileOrigin !== viewerOrigin) {
      //   throw new Error("file origin does not match viewer's");
      // }
    } catch (ex) {
      PDFViewerApplication._documentError("pdfjs-loading-error", {
        message: ex.message
      })
      throw ex
    }
  }
  var onFileInputChange = function (evt) {
    if (this.pdfViewer?.isInPresentationMode) {
      return
    }
    const file = evt.fileInput.files[0]
    this.open({
      url: URL.createObjectURL(file),
      originalUrl: file.name
    })
  }
  var onOpenFile = function (evt) {
    this._openFileInput?.click()
  }
}
function onPageRender ({
  pageNumber
}) {
  if (pageNumber === this.page) {
    this.toolbar?.updateLoadingIndicatorState(true)
  }
}
function onPageRendered ({
  pageNumber,
  error
}) {
  if (pageNumber === this.page) {
    this.toolbar?.updateLoadingIndicatorState(false)
  }
  if (this.pdfSidebar?.visibleView === SidebarView.THUMBS) {
    const pageView = this.pdfViewer.getPageView(pageNumber - 1)
    const thumbnailView = this.pdfThumbnailViewer?.getThumbnail(pageNumber - 1)
    if (pageView) {
      thumbnailView?.setImage(pageView)
    }
  }
  if (error) {
    this._otherError("pdfjs-rendering-error", error)
  }
}
function onPageMode ({
  mode
}) {
  let view
  switch (mode) {
    case "thumbs":
      view = SidebarView.THUMBS
      break
    case "bookmarks":
    case "outline":
      view = SidebarView.OUTLINE
      break
    case "attachments":
      view = SidebarView.ATTACHMENTS
      break
    case "layers":
      view = SidebarView.LAYERS
      break
    case "none":
      view = SidebarView.NONE
      break
    default:
      console.error('Invalid "pagemode" hash parameter: ' + mode)
      return
  }
  this.pdfSidebar?.switchView(view, true)
}
function onNamedAction (evt) {
  switch (evt.action) {
    case "GoToPage":
      this.appConfig.toolbar?.pageNumber.select()
      break
    case "Find":
      if (!this.supportsIntegratedFind) {
        this.findBar?.toggle()
      }
      break
    case "Print":
      this.triggerPrinting()
      break
    case "SaveAs":
      this.downloadOrSave()
      break
  }
}
function onSidebarViewChanged ({
  view
}) {
  this.pdfRenderingQueue.isThumbnailViewEnabled = view === SidebarView.THUMBS
  if (this.isInitialViewSet) {
    this.store?.set("sidebarView", view).catch(() => { })
  }
}
function onUpdateViewarea ({
  location
}) {
  if (this.isInitialViewSet) {
    this.store?.setMultiple({
      page: location.pageNumber,
      zoom: location.scale,
      scrollLeft: location.left,
      scrollTop: location.top,
      rotation: location.rotation
    }).catch(() => { })
  }
  if (this.appConfig.secondaryToolbar) {
    this.appConfig.secondaryToolbar.viewBookmarkButton.href = this.pdfLinkService.getAnchorUrl(location.pdfOpenParams)
  }
}
function onViewerModesChanged (name, evt) {
  if (this.isInitialViewSet && !this.pdfViewer.isInPresentationMode) {
    this.store?.set(name, evt.mode).catch(() => { })
  }
}
function onResize () {
  const {
    pdfDocument,
    pdfViewer,
    pdfRenderingQueue
  } = this
  if (pdfRenderingQueue.printing && window.matchMedia("print").matches) {
    return
  }
  if (!pdfDocument) {
    return
  }
  const currentScaleValue = pdfViewer.currentScaleValue
  if (currentScaleValue === "auto" || currentScaleValue === "page-fit" || currentScaleValue === "page-width") {
    pdfViewer.currentScaleValue = currentScaleValue
  }
  pdfViewer.update()
}
function onHashchange (evt) {
  const hash = evt.hash
  if (!hash) {
    return
  }
  if (!this.isInitialViewSet) {
    this.initialBookmark = hash
  } else if (!this.pdfHistory?.popStateInProgress) {
    this.pdfLinkService.setHash(hash)
  }
}
function onPageNumberChanged (evt) {
  const {
    pdfViewer
  } = this
  if (evt.value !== "") {
    this.pdfLinkService.goToPage(evt.value)
  }
  if (evt.value !== pdfViewer.currentPageNumber.toString() && evt.value !== pdfViewer.currentPageLabel) {
    this.toolbar?.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel)
  }
}
function onImageAltTextSettings () {
  this.imageAltTextSettings?.open({
    enableGuessAltText: AppOptions.get("enableGuessAltText"),
    enableNewAltTextWhenAddingImage: AppOptions.get("enableNewAltTextWhenAddingImage")
  })
}
function onFindFromUrlHash (evt) {
  this.eventBus.dispatch("find", {
    source: evt.source,
    type: "",
    query: evt.query,
    caseSensitive: false,
    entireWord: false,
    highlightAll: true,
    findPrevious: false,
    matchDiacritics: true
  })
}
function onUpdateFindMatchesCount ({
  matchesCount
}) {
  if (this.supportsIntegratedFind) {
    this.externalServices.updateFindMatchesCount(matchesCount)
  } else {
    this.findBar?.updateResultsCount(matchesCount)
  }
}
function onUpdateFindControlState ({
  state,
  previous,
  entireWord,
  matchesCount,
  rawQuery
}) {
  if (this.supportsIntegratedFind) {
    this.externalServices.updateFindControlState({
      result: state,
      findPrevious: previous,
      entireWord,
      matchesCount,
      rawQuery
    })
  } else {
    this.findBar?.updateUIState(state, previous, matchesCount)
  }
}
function onScaleChanging (evt) {
  this.toolbar?.setPageScale(evt.presetValue, evt.scale)
  this.pdfViewer.update()
}
function onRotationChanging (evt) {
  if (this.pdfThumbnailViewer) {
    this.pdfThumbnailViewer.pagesRotation = evt.pagesRotation
  }
  this.forceRendering()
  this.pdfViewer.currentPageNumber = evt.pageNumber
}
function onPageChanging ({
  pageNumber,
  pageLabel
}) {
  this.toolbar?.setPageNumber(pageNumber, pageLabel)
  this.secondaryToolbar?.setPageNumber(pageNumber)
  if (this.pdfSidebar?.visibleView === SidebarView.THUMBS) {
    this.pdfThumbnailViewer?.scrollThumbnailIntoView(pageNumber)
  }
  const currentPage = this.pdfViewer.getPageView(pageNumber - 1)
  this.toolbar?.updateLoadingIndicatorState(currentPage?.renderingState === RenderingStates.RUNNING)
}
function onWheel (evt) {
  const {
    pdfViewer,
    supportsMouseWheelZoomCtrlKey,
    supportsMouseWheelZoomMetaKey,
    supportsPinchToZoom
  } = this
  if (pdfViewer.isInPresentationMode) {
    return
  }
  const deltaMode = evt.deltaMode
  let scaleFactor = Math.exp(-evt.deltaY / 100)
  const isBuiltInMac = false
  const isPinchToZoom = evt.ctrlKey && !this._isCtrlKeyDown && deltaMode === WheelEvent.DOM_DELTA_PIXEL && evt.deltaX === 0 && (Math.abs(scaleFactor - 1) < 0.05 || isBuiltInMac) && evt.deltaZ === 0
  const origin = [evt.clientX, evt.clientY]
  if (isPinchToZoom || evt.ctrlKey && supportsMouseWheelZoomCtrlKey || evt.metaKey && supportsMouseWheelZoomMetaKey) {
    evt.preventDefault()
    if (this._isScrolling || document.visibilityState === "hidden" || this.overlayManager.active) {
      return
    }
    if (isPinchToZoom && supportsPinchToZoom) {
      scaleFactor = this._accumulateFactor(pdfViewer.currentScale, scaleFactor, "_wheelUnusedFactor")
      this.updateZoom(null, scaleFactor, origin)
    } else {
      const delta = normalizeWheelEventDirection(evt)
      let ticks = 0
      if (deltaMode === WheelEvent.DOM_DELTA_LINE || deltaMode === WheelEvent.DOM_DELTA_PAGE) {
        ticks = Math.abs(delta) >= 1 ? Math.sign(delta) : this._accumulateTicks(delta, "_wheelUnusedTicks")
      } else {
        const PIXELS_PER_LINE_SCALE = 30
        ticks = this._accumulateTicks(delta / PIXELS_PER_LINE_SCALE, "_wheelUnusedTicks")
      }
      this.updateZoom(ticks, null, origin)
    }
  }
}
function closeSecondaryToolbar (evt) {
  if (!this.secondaryToolbar?.isOpen) {
    return
  }
  const appConfig = this.appConfig
  if (this.pdfViewer.containsElement(evt.target) || appConfig.toolbar?.container.contains(evt.target) && !appConfig.secondaryToolbar?.toggleButton.contains(evt.target)) {
    this.secondaryToolbar.close()
  }
}
function closeEditorUndoBar (evt) {
  if (!this.editorUndoBar?.isOpen) {
    return
  }
  if (this.appConfig.secondaryToolbar?.toolbar.contains(evt.target)) {
    this.editorUndoBar.hide()
  }
}
function onClick (evt) {
  closeSecondaryToolbar.call(this, evt)
  closeEditorUndoBar.call(this, evt)
}
function onKeyUp (evt) {
  if (evt.key === "Control") {
    this._isCtrlKeyDown = false
  }
}
function onKeyDown (evt) {
  this._isCtrlKeyDown = evt.key === "Control"
  if (this.editorUndoBar?.isOpen && evt.keyCode !== 9 && evt.keyCode !== 16 && !((evt.keyCode === 13 || evt.keyCode === 32) && getActiveOrFocusedElement() === this.appConfig.editorUndoBar.undoButton)) {
    this.editorUndoBar.hide()
  }
  if (this.overlayManager.active) {
    return
  }
  const {
    eventBus,
    pdfViewer
  } = this
  const isViewerInPresentationMode = pdfViewer.isInPresentationMode
  let handled = false,
    ensureViewerFocused = false
  const cmd = (evt.ctrlKey ? 1 : 0) | (evt.altKey ? 2 : 0) | (evt.shiftKey ? 4 : 0) | (evt.metaKey ? 8 : 0)
  if (cmd === 1 || cmd === 8 || cmd === 5 || cmd === 12) {
    switch (evt.keyCode) {
      case 70:
        if (!this.supportsIntegratedFind && !evt.shiftKey) {
          this.findBar?.open()
          handled = true
        }
        break
      case 71:
        if (!this.supportsIntegratedFind) {
          const {
            state
          } = this.findController
          if (state) {
            const newState = {
              source: window,
              type: "again",
              findPrevious: cmd === 5 || cmd === 12
            }
            eventBus.dispatch("find", {
              ...state,
              ...newState
            })
          }
          handled = true
        }
        break
      case 61:
      case 107:
      case 187:
      case 171:
        this.zoomIn()
        handled = true
        break
      case 173:
      case 109:
      case 189:
        this.zoomOut()
        handled = true
        break
      case 48:
      case 96:
        if (!isViewerInPresentationMode) {
          setTimeout(() => {
            this.zoomReset()
          })
          handled = false
        }
        break
      case 38:
        if (isViewerInPresentationMode || this.page > 1) {
          this.page = 1
          handled = true
          ensureViewerFocused = true
        }
        break
      case 40:
        if (isViewerInPresentationMode || this.page < this.pagesCount) {
          this.page = this.pagesCount
          handled = true
          ensureViewerFocused = true
        }
        break
    }
  }
  if (cmd === 1 || cmd === 8) {
    switch (evt.keyCode) {
      case 83:
        eventBus.dispatch("download", {
          source: window
        })
        handled = true
        break
      case 79:
        {
          eventBus.dispatch("openfile", {
            source: window
          })
          handled = true
        }
        break
    }
  }
  if (cmd === 3 || cmd === 10) {
    switch (evt.keyCode) {
      case 80:
        this.requestPresentationMode()
        handled = true
        this.externalServices.reportTelemetry({
          type: "buttons",
          data: {
            id: "presentationModeKeyboard"
          }
        })
        break
      case 71:
        if (this.appConfig.toolbar) {
          this.appConfig.toolbar.pageNumber.select()
          handled = true
        }
        break
    }
  }
  if (handled) {
    if (ensureViewerFocused && !isViewerInPresentationMode) {
      pdfViewer.focus()
    }
    evt.preventDefault()
    return
  }
  const curElement = getActiveOrFocusedElement()
  const curElementTagName = curElement?.tagName.toUpperCase()
  if (curElementTagName === "INPUT" || curElementTagName === "TEXTAREA" || curElementTagName === "SELECT" || curElementTagName === "BUTTON" && (evt.keyCode === 13 || evt.keyCode === 32) || curElement?.isContentEditable) {
    if (evt.keyCode !== 27) {
      return
    }
  }
  if (cmd === 0) {
    let turnPage = 0,
      turnOnlyIfPageFit = false
    switch (evt.keyCode) {
      case 38:
        if (this.supportsCaretBrowsingMode) {
          this.moveCaret(true, false)
          handled = true
          break
        }
      case 33:
        if (pdfViewer.isVerticalScrollbarEnabled) {
          turnOnlyIfPageFit = true
        }
        turnPage = -1
        break
      case 8:
        if (!isViewerInPresentationMode) {
          turnOnlyIfPageFit = true
        }
        turnPage = -1
        break
      case 37:
        if (this.supportsCaretBrowsingMode) {
          return
        }
        if (pdfViewer.isHorizontalScrollbarEnabled) {
          turnOnlyIfPageFit = true
        }
      case 75:
      case 80:
        turnPage = -1
        break
      case 27:
        if (this.secondaryToolbar?.isOpen) {
          this.secondaryToolbar.close()
          handled = true
        }
        if (!this.supportsIntegratedFind && this.findBar?.opened) {
          this.findBar.close()
          handled = true
        }
        break
      case 40:
        if (this.supportsCaretBrowsingMode) {
          this.moveCaret(false, false)
          handled = true
          break
        }
      case 34:
        if (pdfViewer.isVerticalScrollbarEnabled) {
          turnOnlyIfPageFit = true
        }
        turnPage = 1
        break
      case 13:
      case 32:
        if (!isViewerInPresentationMode) {
          turnOnlyIfPageFit = true
        }
        turnPage = 1
        break
      case 39:
        if (this.supportsCaretBrowsingMode) {
          return
        }
        if (pdfViewer.isHorizontalScrollbarEnabled) {
          turnOnlyIfPageFit = true
        }
      case 74:
      case 78:
        turnPage = 1
        break
      case 36:
        if (isViewerInPresentationMode || this.page > 1) {
          this.page = 1
          handled = true
          ensureViewerFocused = true
        }
        break
      case 35:
        if (isViewerInPresentationMode || this.page < this.pagesCount) {
          this.page = this.pagesCount
          handled = true
          ensureViewerFocused = true
        }
        break
      case 83:
        this.pdfCursorTools?.switchTool(CursorTool.SELECT)
        break
      case 72:
        this.pdfCursorTools?.switchTool(CursorTool.HAND)
        break
      case 82:
        this.rotatePages(90)
        break
      case 115:
        this.pdfSidebar?.toggle()
        break
    }
    if (turnPage !== 0 && (!turnOnlyIfPageFit || pdfViewer.currentScaleValue === "page-fit")) {
      if (turnPage > 0) {
        pdfViewer.nextPage()
      } else {
        pdfViewer.previousPage()
      }
      handled = true
    }
  }
  if (cmd === 4) {
    switch (evt.keyCode) {
      case 13:
      case 32:
        if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== "page-fit") {
          break
        }
        pdfViewer.previousPage()
        handled = true
        break
      case 38:
        this.moveCaret(true, true)
        handled = true
        break
      case 40:
        this.moveCaret(false, true)
        handled = true
        break
      case 82:
        this.rotatePages(-90)
        break
    }
  }
  if (!handled && !isViewerInPresentationMode) {
    if (evt.keyCode >= 33 && evt.keyCode <= 40 || evt.keyCode === 32 && curElementTagName !== "BUTTON") {
      ensureViewerFocused = true
    }
  }
  if (ensureViewerFocused && !pdfViewer.containsElement(curElement)) {
    pdfViewer.focus()
  }
  if (handled) {
    evt.preventDefault()
  }
}
function beforeUnload (evt) {
  evt.preventDefault()
  evt.returnValue = ""
  return false
}

;// ./web/viewer.js




const pdfjsVersion = "4.10.38"
const pdfjsBuild = "f9bea397f"
const AppConstants = {
  LinkTarget: LinkTarget,
  RenderingStates: RenderingStates,
  ScrollMode: ScrollMode,
  SpreadMode: SpreadMode
}
window.PDFViewerApplication = PDFViewerApplication
window.PDFViewerApplicationConstants = AppConstants
window.PDFViewerApplicationOptions = AppOptions
function getViewerConfiguration () {
  return {
    appContainer: document.body,
    principalContainer: document.getElementById("mainContainer"),
    mainContainer: document.getElementById("viewerContainer"),
    viewerContainer: document.getElementById("viewer"),
    toolbar: {
      container: document.getElementById("toolbarContainer"),
      numPages: document.getElementById("numPages"),
      pageNumber: document.getElementById("pageNumber"),
      scaleSelect: document.getElementById("scaleSelect"),
      customScaleOption: document.getElementById("customScaleOption"),
      previous: document.getElementById("previous"),
      next: document.getElementById("next"),
      zoomIn: document.getElementById("zoomInButton"),
      zoomOut: document.getElementById("zoomOutButton"),
      print: document.getElementById("printButton"),
      editorFreeTextButton: document.getElementById("editorFreeTextButton"),
      editorFreeTextParamsToolbar: document.getElementById("editorFreeTextParamsToolbar"),
      editorHighlightButton: document.getElementById("editorHighlightButton"),
      editorHighlightParamsToolbar: document.getElementById("editorHighlightParamsToolbar"),
      editorHighlightColorPicker: document.getElementById("editorHighlightColorPicker"),
      editorInkButton: document.getElementById("editorInkButton"),
      editorInkParamsToolbar: document.getElementById("editorInkParamsToolbar"),
      editorStampButton: document.getElementById("editorStampButton"),
      editorStampParamsToolbar: document.getElementById("editorStampParamsToolbar"),
      download: document.getElementById("downloadButton")
    },
    secondaryToolbar: {
      toolbar: document.getElementById("secondaryToolbar"),
      toggleButton: document.getElementById("secondaryToolbarToggleButton"),
      presentationModeButton: document.getElementById("presentationMode"),
      openFileButton: document.getElementById("secondaryOpenFile"),
      printButton: document.getElementById("secondaryPrint"),
      downloadButton: document.getElementById("secondaryDownload"),
      viewBookmarkButton: document.getElementById("viewBookmark"),
      firstPageButton: document.getElementById("firstPage"),
      lastPageButton: document.getElementById("lastPage"),
      pageRotateCwButton: document.getElementById("pageRotateCw"),
      pageRotateCcwButton: document.getElementById("pageRotateCcw"),
      cursorSelectToolButton: document.getElementById("cursorSelectTool"),
      cursorHandToolButton: document.getElementById("cursorHandTool"),
      scrollPageButton: document.getElementById("scrollPage"),
      scrollVerticalButton: document.getElementById("scrollVertical"),
      scrollHorizontalButton: document.getElementById("scrollHorizontal"),
      scrollWrappedButton: document.getElementById("scrollWrapped"),
      spreadNoneButton: document.getElementById("spreadNone"),
      spreadOddButton: document.getElementById("spreadOdd"),
      spreadEvenButton: document.getElementById("spreadEven"),
      imageAltTextSettingsButton: document.getElementById("imageAltTextSettings"),
      imageAltTextSettingsSeparator: document.getElementById("imageAltTextSettingsSeparator"),
      documentPropertiesButton: document.getElementById("documentProperties")
    },
    sidebar: {
      outerContainer: document.getElementById("outerContainer"),
      sidebarContainer: document.getElementById("sidebarContainer"),
      toggleButton: document.getElementById("sidebarToggleButton"),
      resizer: document.getElementById("sidebarResizer"),
      thumbnailButton: document.getElementById("viewThumbnail"),
      outlineButton: document.getElementById("viewOutline"),
      attachmentsButton: document.getElementById("viewAttachments"),
      layersButton: document.getElementById("viewLayers"),
      thumbnailView: document.getElementById("thumbnailView"),
      outlineView: document.getElementById("outlineView"),
      attachmentsView: document.getElementById("attachmentsView"),
      layersView: document.getElementById("layersView"),
      currentOutlineItemButton: document.getElementById("currentOutlineItem")
    },
    findBar: {
      bar: document.getElementById("findbar"),
      toggleButton: document.getElementById("viewFindButton"),
      findField: document.getElementById("findInput"),
      highlightAllCheckbox: document.getElementById("findHighlightAll"),
      caseSensitiveCheckbox: document.getElementById("findMatchCase"),
      matchDiacriticsCheckbox: document.getElementById("findMatchDiacritics"),
      entireWordCheckbox: document.getElementById("findEntireWord"),
      findMsg: document.getElementById("findMsg"),
      findResultsCount: document.getElementById("findResultsCount"),
      findPreviousButton: document.getElementById("findPreviousButton"),
      findNextButton: document.getElementById("findNextButton")
    },
    passwordOverlay: {
      dialog: document.getElementById("passwordDialog"),
      label: document.getElementById("passwordText"),
      input: document.getElementById("password"),
      submitButton: document.getElementById("passwordSubmit"),
      cancelButton: document.getElementById("passwordCancel")
    },
    documentProperties: {
      dialog: document.getElementById("documentPropertiesDialog"),
      closeButton: document.getElementById("documentPropertiesClose"),
      fields: {
        fileName: document.getElementById("fileNameField"),
        fileSize: document.getElementById("fileSizeField"),
        title: document.getElementById("titleField"),
        author: document.getElementById("authorField"),
        subject: document.getElementById("subjectField"),
        keywords: document.getElementById("keywordsField"),
        creationDate: document.getElementById("creationDateField"),
        modificationDate: document.getElementById("modificationDateField"),
        creator: document.getElementById("creatorField"),
        producer: document.getElementById("producerField"),
        version: document.getElementById("versionField"),
        pageCount: document.getElementById("pageCountField"),
        pageSize: document.getElementById("pageSizeField"),
        linearized: document.getElementById("linearizedField")
      }
    },
    altTextDialog: {
      dialog: document.getElementById("altTextDialog"),
      optionDescription: document.getElementById("descriptionButton"),
      optionDecorative: document.getElementById("decorativeButton"),
      textarea: document.getElementById("descriptionTextarea"),
      cancelButton: document.getElementById("altTextCancel"),
      saveButton: document.getElementById("altTextSave")
    },
    newAltTextDialog: {
      dialog: document.getElementById("newAltTextDialog"),
      title: document.getElementById("newAltTextTitle"),
      descriptionContainer: document.getElementById("newAltTextDescriptionContainer"),
      textarea: document.getElementById("newAltTextDescriptionTextarea"),
      disclaimer: document.getElementById("newAltTextDisclaimer"),
      learnMore: document.getElementById("newAltTextLearnMore"),
      imagePreview: document.getElementById("newAltTextImagePreview"),
      createAutomatically: document.getElementById("newAltTextCreateAutomatically"),
      createAutomaticallyButton: document.getElementById("newAltTextCreateAutomaticallyButton"),
      downloadModel: document.getElementById("newAltTextDownloadModel"),
      downloadModelDescription: document.getElementById("newAltTextDownloadModelDescription"),
      error: document.getElementById("newAltTextError"),
      errorCloseButton: document.getElementById("newAltTextCloseButton"),
      cancelButton: document.getElementById("newAltTextCancel"),
      notNowButton: document.getElementById("newAltTextNotNow"),
      saveButton: document.getElementById("newAltTextSave")
    },
    altTextSettingsDialog: {
      dialog: document.getElementById("altTextSettingsDialog"),
      createModelButton: document.getElementById("createModelButton"),
      aiModelSettings: document.getElementById("aiModelSettings"),
      learnMore: document.getElementById("altTextSettingsLearnMore"),
      deleteModelButton: document.getElementById("deleteModelButton"),
      downloadModelButton: document.getElementById("downloadModelButton"),
      showAltTextDialogButton: document.getElementById("showAltTextDialogButton"),
      altTextSettingsCloseButton: document.getElementById("altTextSettingsCloseButton"),
      closeButton: document.getElementById("altTextSettingsCloseButton")
    },
    annotationEditorParams: {
      editorFreeTextFontSize: document.getElementById("editorFreeTextFontSize"),
      editorFreeTextColor: document.getElementById("editorFreeTextColor"),
      editorInkColor: document.getElementById("editorInkColor"),
      editorInkThickness: document.getElementById("editorInkThickness"),
      editorInkOpacity: document.getElementById("editorInkOpacity"),
      editorStampAddImage: document.getElementById("editorStampAddImage"),
      editorFreeHighlightThickness: document.getElementById("editorFreeHighlightThickness"),
      editorHighlightShowAll: document.getElementById("editorHighlightShowAll")
    },
    printContainer: document.getElementById("printContainer"),
    editorUndoBar: {
      container: document.getElementById("editorUndoBar"),
      message: document.getElementById("editorUndoBarMessage"),
      undoButton: document.getElementById("editorUndoBarUndoButton"),
      closeButton: document.getElementById("editorUndoBarCloseButton")
    }
  }
}
function webViewerLoad () {
  const config = getViewerConfiguration()
  const event = new CustomEvent("webviewerloaded", {
    bubbles: true,
    cancelable: true,
    detail: {
      source: window
    }
  })
  try {
    parent.document.dispatchEvent(event)
  } catch (ex) {
    console.error("webviewerloaded:", ex)
    document.dispatchEvent(event)
  }
  PDFViewerApplication.run(config)
}
document.blockUnblockOnload?.(true)
if (document.readyState === "interactive" || document.readyState === "complete") {
  webViewerLoad()
} else {
  document.addEventListener("DOMContentLoaded", webViewerLoad, true)
}

var __webpack_exports__PDFViewerApplication = __webpack_exports__.PDFViewerApplication
var __webpack_exports__PDFViewerApplicationConstants = __webpack_exports__.PDFViewerApplicationConstants
var __webpack_exports__PDFViewerApplicationOptions = __webpack_exports__.PDFViewerApplicationOptions
export { __webpack_exports__PDFViewerApplication as PDFViewerApplication, __webpack_exports__PDFViewerApplicationConstants as PDFViewerApplicationConstants, __webpack_exports__PDFViewerApplicationOptions as PDFViewerApplicationOptions }

//# sourceMappingURL=viewer.mjs.map